You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
ZSI_Reconnect_China/PATSTAT/CPCSchemeXML202302/cpc-scheme-F04B.xml

859 lines
440 KiB
XML

2 years ago
<?xml version="1.0" encoding="UTF-8"?>
<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="F04B" definition-exists="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS</text></title-part><title-part><text>PUMPS </text><reference><text>machines for liquids, or pumps, of rotary-piston or oscillating-piston type <class-ref scheme="cpc">F04C</class-ref>; non-positive-displacement pumps <class-ref scheme="cpc">F04D</class-ref>; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped <class-ref scheme="cpc">F04F</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>In this subclass, the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>&quot;piston&quot; also covers a plunger.</note-paragraph></subnote></note-paragraph><note-paragraph>Attention is drawn to the Notes following the titles of class <class-ref scheme="cpc">B81</class-ref> and subclass <class-ref scheme="cpc">B81B</class-ref> relating to &quot;microstructural devices&quot; and &quot;microstructural systems&quot;.</note-paragraph><note-paragraph>Attention is drawn to the Notes preceding class <class-ref scheme="cpc">F01</class-ref>, especially as regards the definitions of &quot;machines&quot;, &quot;pumps&quot;, and &quot;positive displacement&quot;.</note-paragraph><note-paragraph>Machines, pumps or pumping installations having flexible working members are classified in groups <class-ref scheme="cpc">F04B43/00</class-ref> or <class-ref scheme="cpc">F04B45/00</class-ref>.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">F04B35/02</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">F04B9/08</class-ref></entry></row></table></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F04B1/00" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pumps for liquids or for liquid and elastic fluids</text></title-part><title-part><text>Positive-displacement machines for liquids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B1/00" definition-exists="true" ipc-concordant="F04B1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Multi-cylinder machines or pumps characterised by number or arrangement of cylinders </text><reference><text>machines or pumps with pistons coacting within one cylinder <class-ref scheme="cpc">F04B3/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B1/005" definition-exists="false" ipc-concordant="F04B1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pumps with cylinder axis arranged substantially tangentially to a circle centred on main shaft axis</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B1/02" definition-exists="false" ipc-concordant="F04B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two cylinders </text><reference><text>in V-arrangement <class-ref scheme="cpc">F04B1/04</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B1/03" definition-exists="false" ipc-concordant="F04B1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/03</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with cylinder axis arranged substantially tangentially to a circle centred on main shaft axis</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B1/04" definition-exists="false" ipc-concordant="F04B1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having cylinders in star- or fan-arrangement</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/0404" definition-exists="false" ipc-concordant="F04B1/0404" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0404</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Details or component parts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0408" definition-exists="false" ipc-concordant="F04B1/0408" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0408</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pistons</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0413" definition-exists="false" ipc-concordant="F04B1/0413" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0413</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cams</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0417" definition-exists="false" ipc-concordant="F04B1/0417" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0417</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>consisting of two or more cylindrical elements, e.g. rollers</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0421" definition-exists="false" ipc-concordant="F04B1/0421" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0421</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cylinders</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0426" definition-exists="false" ipc-concordant="F04B1/0426" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0426</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Arrangements for pressing the pistons against the actuated cam</text></title-part><title-part><text>Arrangements for connecting the pistons to the actuated cam</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/043" definition-exists="false" ipc-concordant="F04B1/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/043</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Hydraulic arrangements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0435" definition-exists="true" ipc-concordant="F04B1/0435" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0435</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Arrangements for disconnecting the pistons from the actuated cam</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0439" definition-exists="false" ipc-concordant="F04B1/0439" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0439</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Supporting or guiding means for the pistons</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0443" definition-exists="false" ipc-concordant="F04B1/0443" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0443</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Draining of the housing</text></title-part><title-part><text>Arrangements for handling leaked fluids</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0448" definition-exists="true" ipc-concordant="F04B1/0448" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0448</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Sealing means, e.g. for shafts or housings </text><reference><text>for pistons <class-ref scheme="cpc">F04B1/0408</class-ref> </text><CPC-specific-text><text>; Stoffing boxes <class-ref scheme="cpc">F04B53/164</class-ref></text></CPC-specific-text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0452" definition-exists="false" ipc-concordant="F04B1/0452" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0452</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Distribution members, e.g. valves </text><reference><text>machines or pumps with cam-actuated distribution members at the outer ends of the cylinders <class-ref scheme="cpc">F04B1/0472</class-ref>; machines or pumps with cam-actuated distribution members at the inner ends of the cylinders <class-ref scheme="cpc">F04B1/0531</class-ref>; the piston-driving cams being provided with inlets and outlets <class-ref scheme="cpc">F04B1/0535</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0456" definition-exists="false" ipc-concordant="F04B1/0456" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0456</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cylindrical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0461" definition-exists="false" ipc-concordant="F04B1/0461" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0461</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Conical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0465" definition-exists="false" ipc-concordant="F04B1/0465" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0465</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>plate-like</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/047" definition-exists="false" ipc-concordant="F04B1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/047</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with actuating or actuated elements at the outer ends of the cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0472" definition-exists="false" ipc-concordant="F04B1/0472" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0472</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with cam-actuated distribution members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0474" definition-exists="false" ipc-concordant="F04B1/0474" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0474</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with two or more serially arranged radial piston-cylinder units</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0476" definition-exists="false" ipc-concordant="F04B1/0476" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0476</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>located side-by-side</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0478" definition-exists="false" ipc-concordant="F04B1/0478" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0478</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Coupling of two or more cylinder-barrels</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/053" definition-exists="false" ipc-concordant="F04B1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/053</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with actuating or actuated elements at the inner ends of the cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0531" definition-exists="false" ipc-concordant="F04B1/0531" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0531</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with cam-actuated distribution members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0533" definition-exists="false" ipc-concordant="F04B1/0533" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0533</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>each machine piston having channels that coact with the cylinder and serve as distribution members for another piston-cylinder unit</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0535" definition-exists="false" ipc-concordant="F04B1/0535" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0535</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>the piston-driving cams being provided with inlets and outlets</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/0536" definition-exists="false" ipc-concordant="F04B1/0536" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0536</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with two or more serially arranged radial piston-cylinder units</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/0538" definition-exists="false" ipc-concordant="F04B1/0538" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/0538</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>located side-by-side</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/06" definition-exists="false" ipc-concordant="F04B1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/06</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Control</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/063" definition-exists="false" ipc-concordant="F04B1/063" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/063</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by using a valve in a system with several pumping chambers wherein the flow-path through the chambers can be changed, e.g. between series and parallel flow</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/066" definition-exists="false" ipc-concordant="F04B1/066" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/066</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by changing the phase relationship between the actuating cam and the distributing means</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/07" definition-exists="false" ipc-concordant="F04B1/07" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying the relative eccentricity between two members, e.g. a cam and a drive shaft</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/08" definition-exists="false" ipc-concordant="F04B1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>regulated by delivery pressure</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/10" definition-exists="true" ipc-concordant="F04B1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/10</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>the cylinders being movable, e.g. rotary </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F04B3/006</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/107" definition-exists="false" ipc-concordant="F04B1/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/107</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with actuating or actuated elements at the outer ends of the cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/1071" definition-exists="false" ipc-concordant="F04B1/1071" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/1071</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with rotary cylinder blocks</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/1072" definition-exists="true" ipc-concordant="F04B1/1072" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/1072</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with cylinder blocks and actuating cams rotating together </text><reference><text>in two or more series radial piston-cylinder units <class-ref scheme="cpc">F04B1/1075</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/1074" definition-exists="false" ipc-concordant="F04B1/1074" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/1074</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with two or more serially arranged radial piston-cylinder units</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B1/1075" definition-exists="false" ipc-concordant="F04B1/1075" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/1075</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with cylinder blocks and actuating cams rotating together </text><reference><text>in two or more series radial piston-cylinder units directly located side-by-side <class-ref scheme="cpc">F04B1/1078</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B1/1077" definition-exists="false" ipc-concordant="F04B1/1077" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/1077</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>located side-by-side</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F04B1/1078" definition-exists="false" ipc-concordant="F04B1/1078" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/1078</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with cylinder blocks and actuating cams rotating together</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/113" definition-exists="false" ipc-concordant="F04B1/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/113</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with actuating or actuated elements at the inner ends of the cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/1133" definition-exists="false" ipc-concordant="F04B1/1133" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/1133</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with rotary cylinder blocks</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/1136" definition-exists="false" ipc-concordant="F04B1/1136" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/1136</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>with a rotary cylinder with a single piston reciprocating within the cylinder</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B1/12" definition-exists="false" ipc-concordant="F04B1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/12</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>having cylinder axes coaxial with, or parallel or inclined to, main shaft axis</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/122" definition-exists="false" ipc-concordant="F04B1/122" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/122</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Details or component parts, e.g. valves, sealings or lubrication means </text><reference><text>for machines or pumps having rotary cylinder blocks <class-ref scheme="cpc">F04B1/2014</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/124" definition-exists="false" ipc-concordant="F04B1/124" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/124</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pistons</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/126" definition-exists="false" ipc-concordant="F04B1/126" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/126</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Piston shoe retaining means</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/128" definition-exists="false" ipc-concordant="F04B1/128" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/128</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Driving means</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/14" definition-exists="true" ipc-concordant="F04B1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-11-01" status="published"><classification-symbol>F04B1/14</classification-symbol><class-title date-revised="2015-11-01"><title-part><text>having stationary cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/141" definition-exists="false" ipc-concordant="F04B1/141" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/141</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Details or component parts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/143" definition-exists="false" ipc-concordant="F04B1/143" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/143</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cylinders</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/145" definition-exists="false" ipc-concordant="F04B1/145" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/145</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Housings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/146" definition-exists="false" ipc-concordant="F04B1/146" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/146</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Swash plates</text></title-part><title-part><text>Actuating elements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/148" definition-exists="false" ipc-concordant="F04B1/148" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/148</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Bearings therefor</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/16" definition-exists="false" ipc-concordant="F04B1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or more sets of cylinders or pistons</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/18" definition-exists="false" ipc-concordant="F04B1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having self-acting distribution members, i.e. actuated by working fluid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/182" definition-exists="false" ipc-concordant="F04B1/182" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/182</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Check valves</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/184" definition-exists="false" ipc-concordant="F04B1/184" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/184</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cylindrical distribution members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/186" definition-exists="false" ipc-concordant="F04B1/186" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/186</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Conical distribution members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/188" definition-exists="false" ipc-concordant="F04B1/188" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/188</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Plate-like distribution members</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/20" definition-exists="true" ipc-concordant="F04B1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having rotary cylinder block</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/2007" definition-exists="false" ipc-concordant="F04B1/2007" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/2007</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Arrangements for pressing the cylinder barrel against the valve plate, e.g. by fluid pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/2014" definition-exists="false" ipc-concordant="F04B1/2014" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/2014</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Details or component parts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/2021" definition-exists="false" ipc-concordant="F04B1/2021" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2021</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>characterised by the contact area between cylinder barrel and valve plate</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/2028" definition-exists="false" ipc-concordant="F04B1/2028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2028</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Bearings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/2035" definition-exists="false" ipc-concordant="F04B1/2035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2035</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cylinder barrels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/2042" definition-exists="false" ipc-concordant="F04B1/2042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2042</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Valves</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/205" definition-exists="false" ipc-concordant="F04B1/205" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/205</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cylindrical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/2057" definition-exists="false" ipc-concordant="F04B1/2057" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2057</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Conical</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/2064" definition-exists="false" ipc-concordant="F04B1/2064" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2064</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Housings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/2071" definition-exists="false" ipc-concordant="F04B1/2071" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2071</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Bearings for cylinder barrels</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/2078" definition-exists="false" ipc-concordant="F04B1/2078" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2078</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Swash plates</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/2085" definition-exists="false" ipc-concordant="F04B1/2085" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/2085</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Bearings for swash plates or driving axles</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/2092" definition-exists="false" ipc-concordant="F04B1/2092" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/2092</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Means for connecting rotating cylinder barrels and rotating inclined swash plates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/22" definition-exists="false" ipc-concordant="F04B1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or more sets of cylinders or pistons</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/24" definition-exists="false" ipc-concordant="F04B1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/24</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>inclined to the main shaft axis</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B1/26" definition-exists="false" ipc-concordant="F04B1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/28" definition-exists="false" ipc-concordant="F04B1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/28</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>of machines or pumps with stationary cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/29" definition-exists="false" ipc-concordant="F04B1/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/29</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying the relative positions of a swash plate and a cylinder block</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/295" definition-exists="false" ipc-concordant="F04B1/295" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/295</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by changing the inclination of the swash plate</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B1/30" definition-exists="false" ipc-concordant="F04B1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/30</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>of machines or pumps with rotary cylinder blocks</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/303" definition-exists="false" ipc-concordant="F04B1/303" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/303</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by turning the valve plate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/306" definition-exists="false" ipc-concordant="F04B1/306" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/306</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by turning the swash plate, e.g. with fixed inclination</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B1/32" definition-exists="false" ipc-concordant="F04B1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B1/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying the relative positions of a swash plate and a cylinder block</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/322" definition-exists="false" ipc-concordant="F04B1/322" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/322</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by moving the swash plate in a direction perpendicular to the axis of rotation of the cylinder barrel</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/324" definition-exists="false" ipc-concordant="F04B1/324" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/324</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by changing the inclination of the swash plate</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B1/326" definition-exists="false" ipc-concordant="F04B1/326" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/326</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>using wedges</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B1/328" definition-exists="true" ipc-concordant="F04B1/328" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B1/328</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by changing the inclination of the axis of the cylinder barrel relative to the swash plate</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B1/34" definition-exists="false" ipc-concordant="F04B1/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B1/34</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Control not provided for in groups <class-ref scheme="cpc">F04B1/02</class-ref>, <class-ref scheme="cpc">F04B1/03</class-ref>, <class-ref scheme="cpc">F04B1/06</class-ref> or <class-ref scheme="cpc">F04B1/26</class-ref></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B3/00" definition-exists="true" ipc-concordant="F04B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F04B3/00</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B3/003" definition-exists="false" ipc-concordant="F04B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B3/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more pistons reciprocating one within another, e.g. one piston forning cylinder of the other</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B3/006" definition-exists="false" ipc-concordant="F04B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B3/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with rotating cylinder block</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B5/00" definition-exists="true" ipc-concordant="F04B5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B5/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Machines or pumps with differential-surface pistons</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B5/02" definition-exists="false" ipc-concordant="F04B5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with double-acting pistons</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B7/00" definition-exists="true" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B7/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Piston machines or pumps characterised by having positively-driven valving</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0003" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the distribution member forming both the inlet and discharge distributor for one single pumping chamber </text><reference><text><class-ref scheme="cpc">F04B7/0208</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0007" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having a rotating movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0011" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0011</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having an oscillating movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0015" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having a slidable movement</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0019" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0019</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>a common distribution member forming a single discharge distributor for a plurality of pumping chambers </text><reference><text><class-ref scheme="cpc">F04B7/0233</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0023" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having a rotating movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0026" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having an oscillating movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/003" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having a slidable movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0034" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0034</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having an orbital movement, e.g. elbow-pipe type members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0038" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0038</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the distribution member forming a single inlet for a plurality of pumping chambers or a multiple discharge for one single pumping chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0042" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with specific kinematics of the distribution member </text><reference><text><class-ref scheme="cpc">F04B7/0003</class-ref>, <class-ref scheme="cpc">F04B7/0019</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0046" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for rotating distribution members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0049" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0049</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for oscillating distribution members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0053" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F04B7/0053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for reciprocating distribution members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0057" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mechanical driving means therefor, e.g. cams</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0061" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for a rotating member</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0065" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>being mounted on the main shaft</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0069" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0069</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for a sliding member</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0073" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the member being of the lost-motion type, e.g. friction-actuated members, or having means for pushing it against or pulling it from its seat</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0076" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0076</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being actuated by electro-magnetic means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/008" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the distribution being realised by moving the cylinder itself, e.g. by sliding or swinging </text><reference><text><class-ref scheme="cpc">F04B7/0291</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/0084" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Component parts or details specially adapted therefor</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0088" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing arrangements between the distribution members and the housing</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0092" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for oscillating distribution members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0096" definition-exists="false" ipc-concordant="F04B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0096</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for pipe-type distribution members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/02" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the valving being fluid-actuated</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0208" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the distribution member forming both the inlet and discharge distributor for one single pumping chamber</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0216" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0216</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having an oscillating movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0225" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having a slidable movement</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0233" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0233</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>a common distribution member forming a single discharge distributor for a plurality of pumping chambers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0241" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having an oscillating movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/025" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having a slidable movement</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0258" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0258</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having an orbital movement, e.g. elbow-pipe type members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0266" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the inlet and discharge means being separate members</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0275" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0275</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and being deformable, e.g. membranes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B7/0283" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having a rotating movement</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/0291" definition-exists="false" ipc-concordant="F04B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/0291</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the distribution being realised by moving the cylinder itself, e.g. by sliding or swinging</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B7/04" definition-exists="false" ipc-concordant="F04B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/045" definition-exists="false" ipc-concordant="F04B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Two pistons coacting within one cylinder</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B7/06" definition-exists="false" ipc-concordant="F04B7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pistons and cylinders being relatively reciprocated and rotated</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B9/00" definition-exists="true" ipc-concordant="F04B9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Piston machines or pumps characterised by the driving or driven means to or from their working members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B9/02" definition-exists="false" ipc-concordant="F04B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being mechanical</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B9/025" definition-exists="false" ipc-concordant="F04B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Driving of pistons coacting within one cylinder</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B9/04" definition-exists="true" ipc-concordant="F04B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B9/04</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>the means being cams, eccentrics or pin-and-slot mechanisms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/042" definition-exists="false" ipc-concordant="F04B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the means being cams</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/045" definition-exists="false" ipc-concordant="F04B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the means being eccentrics</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/047" definition-exists="false" ipc-concordant="F04B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the means being pin-and-slot mechanisms</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B9/06" definition-exists="false" ipc-concordant="F04B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means including spring- or weight-loaded lost-motion devices</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B9/08" definition-exists="false" ipc-concordant="F04B9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being fluid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B9/10" definition-exists="false" ipc-concordant="F04B9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fluid being liquid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/103" definition-exists="false" ipc-concordant="F04B9/103" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having only one pumping chamber</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/1035" definition-exists="false" ipc-concordant="F04B9/103" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of the pump piston in the two directions being obtained by two single-acting liquid motors each acting in one direction</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/105" definition-exists="false" ipc-concordant="F04B9/105" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reciprocating movement of the pumping member being obtained by a double-acting liquid motor</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1053" definition-exists="false" ipc-concordant="F04B9/105" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>one side of the double-acting liquid motor being always under the influence of the liquid under pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1056" definition-exists="false" ipc-concordant="F04B9/105" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1056</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated inlet or outlet valve </text><reference><text>mechanically controlled <class-ref scheme="cpc">F04B7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/107" definition-exists="false" ipc-concordant="F04B9/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>rectilinear movement of the pumping member in the working direction being obtained by a single-acting liquid motor, e.g. actuated in the other direction by gravity or a spring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1073" definition-exists="false" ipc-concordant="F04B9/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with actuation in the other direction by gravity</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1076" definition-exists="false" ipc-concordant="F04B9/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1076</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated inlet or outlet valve </text><reference><text>mechanically controlled <class-ref scheme="cpc">F04B7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/109" definition-exists="false" ipc-concordant="F04B9/109" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/109</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having plural pumping chambers</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/1095" definition-exists="false" ipc-concordant="F04B9/109" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1095</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having two or more pumping chambers in series</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/111" definition-exists="false" ipc-concordant="F04B9/111" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/111</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two mechanically connected pumping members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1115" definition-exists="false" ipc-concordant="F04B9/111" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1115</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of the pumping pistons in only one direction being obtained by a single-acting piston liquid motor, e.g. actuation in the other direction by spring means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/113" definition-exists="false" ipc-concordant="F04B9/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/113</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reciprocating movement of the pumping members being obtained by a double-acting liquid motor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/115" definition-exists="false" ipc-concordant="F04B9/115" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/115</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/117" definition-exists="false" ipc-concordant="F04B9/117" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/117</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pumping members not being mechanically connected to each other</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1172" definition-exists="false" ipc-concordant="F04B9/117" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1172</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of each pump piston in the two directions being obtained by a double-acting piston liquid motor</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B9/1174" definition-exists="false" ipc-concordant="F04B9/117" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1174</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated inlet or outlet valve </text><reference><text>mechanically controlled <class-ref scheme="cpc">F04B7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1176" definition-exists="false" ipc-concordant="F04B9/117" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1176</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of each piston in one direction being obtained by a single-acting piston liquid motor</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B9/1178" definition-exists="false" ipc-concordant="F04B9/117" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1178</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement in the other direction being obtained by a hydraulic connection between the liquid motor cylinders</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B9/12" definition-exists="false" ipc-concordant="F04B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fluid being elastic, e.g. steam or air</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/1207" definition-exists="false" ipc-concordant="F04B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a source of partial vacuum or sub-atmospheric pressure</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/1215" definition-exists="false" ipc-concordant="F04B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the return stroke being obtained by a spring</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/1222" definition-exists="false" ipc-concordant="F04B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the return stroke being obtained by an elastic fluid under pressure</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/123" definition-exists="false" ipc-concordant="F04B9/123" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having only one pumping chamber</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/1235" definition-exists="false" ipc-concordant="F04B9/123" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1235</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of the pump piston in the two directions being obtained by two single-acting piston fluid motors, each acting in one direction</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/125" definition-exists="false" ipc-concordant="F04B9/125" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1253" definition-exists="false" ipc-concordant="F04B9/125" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>one side of the double-acting piston fluid motor being always under the influence of the fluid under pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1256" definition-exists="false" ipc-concordant="F04B9/125" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1256</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated inlet or outlet valve </text><reference><text>mechanically controlled <class-ref scheme="cpc">F04B7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/127" definition-exists="false" ipc-concordant="F04B9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1273" definition-exists="false" ipc-concordant="F04B9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1273</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with actuation in the other direction by gravity</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1276" definition-exists="false" ipc-concordant="F04B9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated inlet or outlet valve </text><reference><text>mechanically controlled <class-ref scheme="cpc">F04B7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B9/129" definition-exists="false" ipc-concordant="F04B9/129" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/129</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having plural pumping chambers</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/1295" definition-exists="false" ipc-concordant="F04B9/129" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1295</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having two or more pumping chambers in series</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/131" definition-exists="false" ipc-concordant="F04B9/131" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/131</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two mechanically connected pumping members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1315" definition-exists="false" ipc-concordant="F04B9/131" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1315</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of the pumping pistons in only one direction being obtained by a single-acting piston fluid motor, e.g. actuation in the other direction by spring means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/133" definition-exists="false" ipc-concordant="F04B9/133" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/133</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/135" definition-exists="false" ipc-concordant="F04B9/135" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/135</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reciprocating movement of the pumping members being obtained by two single-acting elastic-fluid motors, each acting in one direction</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B9/137" definition-exists="false" ipc-concordant="F04B9/137" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/137</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pumping members not being mechanically connected to each other</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1372" definition-exists="false" ipc-concordant="F04B9/137" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1372</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of each pump piston in the two directions is obtained by a double-acting piston fluid motor</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B9/1374" definition-exists="false" ipc-concordant="F04B9/137" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1374</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated inlet or outlet valve </text><reference><text>mechanically controlled <class-ref scheme="cpc">F04B7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B9/1376" definition-exists="false" ipc-concordant="F04B9/137" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1376</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement of each piston in one direction being obtained by a single-acting piston fluid motor</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B9/1378" definition-exists="false" ipc-concordant="F04B9/137" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/1378</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the movement in the other direction being obtained by an hydraulic connection between the fluid motor cylinders</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B9/14" definition-exists="false" ipc-concordant="F04B9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B9/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps characterised by muscle-power operation </text><CPC-specific-text><reference><text>hand-held spraying or dispensing apparatus using pumps or bulbs <class-ref scheme="cpc">B05B11/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B11/00" definition-exists="true" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Equalisation of pulses, e.g. by use of air vessels</text></title-part><title-part><text>Counteracting cavitation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B11/0008" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using accumulators</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B11/0016" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a fluid spring</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B11/0025" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the spring fluid being in direct contact with the pumped fluid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B11/0033" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a mechanical spring</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B11/0041" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by piston speed control </text><reference><text><class-ref scheme="cpc">F04B11/0058</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B11/005" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using two or more pumping pistons</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B11/0058" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0058</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with piston speed control</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B11/0066" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with special shape of the actuating element</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B11/0075" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>connected in series</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B11/0083" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pistons having different cross-sections</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B11/0091" definition-exists="false" ipc-concordant="F04B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B11/0091</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a special shape of fluid pass, e.g. throttles, ducts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B13/00" definition-exists="true" ipc-concordant="F04B13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B13/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pumps specially modified to deliver fixed or variable measured quantities</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B13/02" definition-exists="false" ipc-concordant="F04B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of two or more fluids at the same time</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B15/00" definition-exists="true" ipc-concordant="F04B15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B15/02" definition-exists="false" ipc-concordant="F04B15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fluids being viscous or non-homogeneous</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B15/023" definition-exists="false" ipc-concordant="F04B15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B15/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>supply of fluid to the pump by gravity through a hopper, e.g. without intake valve</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B15/026" definition-exists="false" ipc-concordant="F04B15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a priming plunger or piston ahead of the pumping piston and connected on the same piston rod</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B15/04" definition-exists="false" ipc-concordant="F04B15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B15/04</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>the fluids being hot or corrosive </text><reference><text>for liquids near their boiling point, e.g. under subnormal pressure, <class-ref scheme="cpc">F04B15/06</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B15/06" definition-exists="false" ipc-concordant="F04B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for liquids near their boiling point, e.g. under subnormal pressure</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B15/08" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the liquids having low boiling points</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B15/081" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>F04B2015/081</classification-symbol><class-title date-revised="2018-01-01"><title-part><CPC-specific-text><text>Liquefied gases</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/0812" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/0812</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Air</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/0814" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/0814</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Argon</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/0816" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/0816</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon monoxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/0818" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/0818</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbon dioxide</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/082" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Helium</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/0822" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/0822</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hydrogen</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/0824" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/0824</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nitrogen</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F04B15/0826" definition-exists="false" ipc-concordant="F04B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2015/0826</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oxygen</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B17/00" definition-exists="true" ipc-concordant="F04B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps characterised by combination with, or adaptation to, specific driving engines or motors</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B17/003" definition-exists="false" ipc-concordant="F04B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>driven by piezo-electric means </text><reference><text><class-ref scheme="cpc">F04B43/046</class-ref> and <class-ref scheme="cpc">F04B43/095</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B17/006" definition-exists="false" ipc-concordant="F04B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Solar operated</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B17/02" definition-exists="false" ipc-concordant="F04B17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>driven by wind motors</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B17/03" definition-exists="false" ipc-concordant="F04B17/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>driven by electric motors</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B17/04" definition-exists="false" ipc-concordant="F04B17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using solenoids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B17/042" definition-exists="false" ipc-concordant="F04B17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the solenoid motor being separated from the fluid flow</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B17/044" definition-exists="false" ipc-concordant="F04B17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solenoids directly actuating the piston</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B17/046" definition-exists="false" ipc-concordant="F04B17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid flowing through the moving part of the motor</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B17/048" definition-exists="false" ipc-concordant="F04B17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid flowing around the moving part of the motor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B17/05" definition-exists="false" ipc-concordant="F04B17/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>driven by internal-combustion engines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B17/06" definition-exists="false" ipc-concordant="F04B17/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B17/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mobile combinations</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B19/00" definition-exists="true" ipc-concordant="F04B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F04B19/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups <class-ref scheme="cpc">F04B1/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F04B17/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B19/003" definition-exists="false" ipc-concordant="F04B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>free-piston type pumps</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B19/006" definition-exists="false" ipc-concordant="F04B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F04B19/006</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Micropumps </text><reference><text><class-ref scheme="cpc">F04B43/043</class-ref> and <class-ref scheme="cpc">F04B43/095</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B19/02" definition-exists="false" ipc-concordant="F04B19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having movable cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/022" definition-exists="false" ipc-concordant="F04B19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>reciprocating cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/025" definition-exists="false" ipc-concordant="F04B19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinders rotating around their own axis</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/027" definition-exists="false" ipc-concordant="F04B19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinders oscillating around an axis perpendicular to their own axis</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B19/04" definition-exists="true" ipc-concordant="F04B19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B19/04</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pumps for special use</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/06" definition-exists="false" ipc-concordant="F04B19/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F04B19/06</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Pumps for delivery of both liquid and elastic fluids at the same time </text><reference><text>wet gas pumps <class-ref scheme="cpc">F04B37/20</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B19/08" definition-exists="false" ipc-concordant="F04B19/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Scoop devices</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/10" definition-exists="false" ipc-concordant="F04B19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of wheel type</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/12" definition-exists="false" ipc-concordant="F04B19/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of helical or screw-type</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/14" definition-exists="false" ipc-concordant="F04B19/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of endless-chain type, e.g. with the chains carrying pistons co-operating with open-ended cylinders</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B19/16" definition-exists="false" ipc-concordant="F04B19/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adhesion-type liquid-lifting devices</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/18" definition-exists="false" ipc-concordant="F04B19/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adhesion members therefor</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B19/20" definition-exists="false" ipc-concordant="F04B19/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other positive-displacement pumps</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/22" definition-exists="false" ipc-concordant="F04B19/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of reciprocating-piston type</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B19/24" definition-exists="false" ipc-concordant="F04B19/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B19/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumping by heat expansion of pumped fluid</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B23/00" definition-exists="true" ipc-concordant="F04B23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B23/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pumping installations or systems </text><reference><text>pumps characterised by combination with, or adaptation to, specific driving engines or motors <class-ref scheme="cpc">F04B17/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B23/02" definition-exists="false" ipc-concordant="F04B23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having reservoirs</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B23/021" definition-exists="false" ipc-concordant="F04B23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pump being immersed in the reservoir</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B23/023" definition-exists="false" ipc-concordant="F04B23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>only the pump-part being immersed, the driving-part being outside the reservoir</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B23/025" definition-exists="false" ipc-concordant="F04B23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pump being located directly adjacent the reservoir</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B23/026" definition-exists="false" ipc-concordant="F04B23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>a pump-side forming a wall of the reservoir</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B23/028" definition-exists="false" ipc-concordant="F04B23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pump being mounted on top of the reservoir</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B23/04" definition-exists="false" ipc-concordant="F04B23/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of two or more pumps</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B23/06" definition-exists="false" ipc-concordant="F04B23/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pumps being all of reciprocating positive-displacement type</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B23/08" definition-exists="false" ipc-concordant="F04B23/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B23/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pumps being of different types</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B23/10" definition-exists="false" ipc-concordant="F04B23/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B23/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>at least one pump being of the reciprocating positive-displacement type</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B23/103" definition-exists="false" ipc-concordant="F04B23/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B23/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>being a radial piston pump</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B23/106" definition-exists="false" ipc-concordant="F04B23/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B23/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>being an axial piston pump</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B23/12" definition-exists="false" ipc-concordant="F04B23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B23/12</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>at least one pump being of the rotary-piston positive-displacement type</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B23/14" definition-exists="false" ipc-concordant="F04B23/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B23/14</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>at least one pump being of the non-positive-displacement type</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F04B25/00" date-revised="2020-01-01" status="published"><classification-symbol>F04B25/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pumps specially adapted for elastic fluids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B25/00" definition-exists="true" ipc-concordant="F04B25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B25/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Multi-stage pumps</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B25/005" definition-exists="false" ipc-concordant="F04B25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B25/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B25/02" definition-exists="false" ipc-concordant="F04B25/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B25/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of stepped piston type</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B25/04" definition-exists="false" ipc-concordant="F04B25/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B25/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having cylinders coaxial with, or parallel or inclined to, main shaft axis</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B27/00" definition-exists="true" ipc-concordant="F04B27/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B27/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders </text><reference><text>multi-stage pumps specially adapted for elastic fluids <class-ref scheme="cpc">F04B25/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B27/005" definition-exists="false" ipc-concordant="F04B27/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B27/02" definition-exists="false" ipc-concordant="F04B27/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having cylinders arranged oppositely relative to main shaft</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B27/04" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having cylinders in star- or fan-arrangement</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/0404" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0404</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details, component parts specially adapted for such pumps</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0409" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0409</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pistons</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0414" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0414</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cams</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0418" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0418</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of several cylindrical elements, e.g. rollers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0423" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0423</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0428" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0428</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for pressing or connecting the pistons against the actuated cam</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0432" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0432</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>hydraulically</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0437" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B27/0437</classification-symbol><class-title date-revised="2020-01-01"><title-part><CPC-specific-text><text>Disconnecting the pistons from the actuated cam</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0442" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0442</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Supporting and guiding means for the pistons</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0446" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0446</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Draining of the engine housing; Arrangements dealing with leakage fluid</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0451" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0451</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Particularities relating to the distribution members </text><reference><text><class-ref scheme="cpc">F04B27/0472</class-ref>, <class-ref scheme="cpc">F04B27/0531</class-ref> and <class-ref scheme="cpc">F04B27/0535</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0456" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0456</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>to cylindrical distribution members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/046" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>to conical distribution members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0465" definition-exists="false" ipc-concordant="F04B27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0465</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>to plate like distribution members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/047" definition-exists="false" ipc-concordant="F04B27/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an actuating element at the outer ends of the cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0472" definition-exists="false" ipc-concordant="F04B27/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0472</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with cam-actuated distribution members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0474" definition-exists="false" ipc-concordant="F04B27/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0474</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more series radial piston-cylinder units</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0476" definition-exists="false" ipc-concordant="F04B27/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>directly located side-by-side</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0478" definition-exists="false" ipc-concordant="F04B27/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0478</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coupling of several cylinder-barrels</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/053" definition-exists="false" ipc-concordant="F04B27/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with an actuating element at the inner ends of the cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0531" definition-exists="false" ipc-concordant="F04B27/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0531</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with cam-actuated distribution members</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0533" definition-exists="false" ipc-concordant="F04B27/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0533</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>each machine piston being provided with channels, which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0535" definition-exists="false" ipc-concordant="F04B27/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0535</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the piston-driving cam being provided with an inlet or an outlet</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0536" definition-exists="false" ipc-concordant="F04B27/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0536</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more series radial piston-cylinder units</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0538" definition-exists="false" ipc-concordant="F04B27/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0538</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>directly located side-by-side</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/06" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the cylinders being movable, e.g. rotary </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F04B27/08</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0606" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0606</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the outer ends of the cylinders</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0612" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0612</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>rotary cylinder block</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/0619" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0619</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinder block and actuating cam rotating together </text><reference><text><class-ref scheme="cpc">F04B27/0631</class-ref> and <class-ref scheme="cpc">F04B27/0644</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/0625" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more series radial piston cylinder units</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B27/0631" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0631</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinder block and actuating cam both rotating </text><reference><text><class-ref scheme="cpc">F04B27/0644</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B27/0638" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0638</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>directly located side by side</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F04B27/0644" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0644</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinder block and actuating cam both rotating</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/065" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having cylinders in star- or fan-arrangement, the connection of the pistons with an actuating element being at the inner ends of the cylinders</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0657" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0657</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>rotary cylinder block</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/0663" definition-exists="false" ipc-concordant="F04B27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0663</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the rotary cylinder being provided with only one piston, reciprocating within this cylinder</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/067" definition-exists="false" ipc-concordant="F04B27/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0673" definition-exists="false" ipc-concordant="F04B27/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0673</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using a valve in a system with several pumping chambers, wherein the flow-path through the chambers can be changed, e.g. series-parallel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0676" definition-exists="false" ipc-concordant="F04B27/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0676</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by changing the phase relationship between the actuating cam and the distribution means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/073" definition-exists="false" ipc-concordant="F04B27/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying the relative eccentricity between two members, e.g. a cam and a drive shaft</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B27/08" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having cylinders coaxial with, or parallel or inclined to, main shaft axis</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/0804" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B27/0804</classification-symbol><class-title date-revised="2020-01-01"><title-part><CPC-specific-text><text>having rotary cylinder block</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0808" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0808</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having two or more sets of cylinders or pistons</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0813" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0813</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>inclined to main shaft axis</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0817" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F04B27/0817</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>arrangements for pressing the cylinder barrel against the valve plate, e.g. by fluid pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0821" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0821</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>component parts, details, e.g. valves, sealings, lubrication</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0826" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0826</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>particularities in the contacting area between cylinder barrel and valve plate</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/083" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>bearing means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0834" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0834</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinder barrel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0839" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0839</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>valve means, e.g. valve plate</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/0843" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0843</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylindrical valve means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/0847" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0847</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>conical valve means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0852" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0852</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>machine housing</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/0856" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0856</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cylinder barrel bearing means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/086" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>swash plate</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/0865" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0865</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>swash plate bearing means or driving axis bearing means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0869" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0869</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>connection between rotating cylinder barrel and rotating inclined swash plate</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/0873" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0873</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Component parts, e.g. sealings; Manufacturing or assembly thereof</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0878" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0878</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pistons</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0882" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0882</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>piston shoe retaining means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/0886" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0886</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Piston shoes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0891" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0891</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>casings, housings</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/0895" definition-exists="false" ipc-concordant="F04B27/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/0895</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>driving means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/10" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having stationary cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/1009" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Distribution members</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/1018" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylindrical distribution members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/1027" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Conical distribution members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/1036" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Component parts, details, e.g. sealings, lubrication</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/1045" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/1054" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1054</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Actuating elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/1063" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Actuating-element bearing means or driving-axis bearing means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/1072" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pivot mechanisms</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/1081" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Casings, housings</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/109" definition-exists="false" ipc-concordant="F04B27/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/109</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lubrication</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/12" definition-exists="false" ipc-concordant="F04B27/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having plural sets of cylinders or pistons</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B27/14" definition-exists="false" ipc-concordant="F04B27/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/16" definition-exists="false" ipc-concordant="F04B27/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of pumps with stationary cylinders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/18" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying the relative positions of a swash plate and a cylinder block</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B27/1804" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/1804</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlled by crankcase pressure</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F04B27/1809" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1809</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlled pressure</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1813" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1813</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crankcase pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1818" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1818</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Suction pressure</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F04B27/1822" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1822</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valve-controlled fluid connection</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1827" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1827</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>between crankcase and discharge chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1831" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1831</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>between crankcase and suction chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1836" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1836</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>between crankcase and working chamber</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F04B27/184" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/184</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valve controlling parameter</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1845" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1845</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crankcase pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/185" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discharge pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1854" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1854</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>External parameters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1859" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1859</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Suction pressure</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F04B27/1863" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1863</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an auxiliary valve, controlled by</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1868" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1868</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crankcase pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1872" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1872</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discharge pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1877" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1877</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>External parameters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1881" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1881</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Suction pressure</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F04B27/1886" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1886</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Open (not controlling) fluid passage</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/189" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/189</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>between crankcase and discharge chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="14" additional-only="true" sort-key="F04B27/1895" definition-exists="false" ipc-concordant="F04B27/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2027/1895</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>between crankcase and suction chamber</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B27/20" definition-exists="false" ipc-concordant="F04B27/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of pumps with rotary cylinder block</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B27/22" definition-exists="false" ipc-concordant="F04B27/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B27/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying the relative positions of a swash plate and a cylinder block</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B27/24" definition-exists="false" ipc-concordant="F04B27/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F04B27/24</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Control not provided for in a single group of groups <class-ref scheme="cpc">F04B27/02</class-ref>&#160;-&#160;<class-ref scheme="cpc">F04B27/22</class-ref></text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B29/00" definition-exists="true" ipc-concordant="F04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-11-01" status="published"><classification-symbol>F04B29/00</classification-symbol><class-title date-revised="2016-11-01"><title-part><CPC-specific-text><text>Other pumps with movable, e.g. rotatable cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B31/00" definition-exists="true" ipc-concordant="F04B31/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B31/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Free-piston pumps specially adapted for elastic fluids</text></title-part><title-part><text>Systems incorporating such pumps </text><reference><text>muscle-driven pumps in which the stroke is not defined by gearing <class-ref scheme="cpc">F04B33/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B33/00" definition-exists="true" ipc-concordant="F04B33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B33/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps actuated by muscle power, e.g. for inflating</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B33/005" definition-exists="false" ipc-concordant="F04B33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B33/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B33/02" definition-exists="false" ipc-concordant="F04B33/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B33/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with intermediate gearing</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B35/00" definition-exists="true" ipc-concordant="F04B35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B35/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B35/002" definition-exists="false" ipc-concordant="F04B35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>driven by internal combustion engines</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B35/004" definition-exists="false" ipc-concordant="F04B35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>driven by floating elements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B35/006" definition-exists="false" ipc-concordant="F04B35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>driven by steam engines</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B35/008" definition-exists="false" ipc-concordant="F04B35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the means being a fluid transmission link</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B35/01" definition-exists="false" ipc-concordant="F04B35/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being mechanical</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B35/04" definition-exists="false" ipc-concordant="F04B35/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being electric</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B35/045" definition-exists="false" ipc-concordant="F04B35/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solenoids</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B35/06" definition-exists="false" ipc-concordant="F04B35/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B35/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mobile combinations</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B37/00" definition-exists="true" ipc-concordant="F04B37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F04B37/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Pumps having pertinent characteristics not provided for in, or of interest apart from, groups <class-ref scheme="cpc">F04B25/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F04B35/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B37/02" definition-exists="true" ipc-concordant="F04B37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B37/02</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>for evacuating by absorption or adsorption</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B37/04" definition-exists="false" ipc-concordant="F04B37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B37/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of specific absorption or adsorption materials</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B37/06" definition-exists="false" ipc-concordant="F04B37/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B37/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for evacuating by thermal means</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B37/08" definition-exists="true" ipc-concordant="F04B37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B37/08</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by condensing or freezing, e.g. cryogenic pumps</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B37/085" definition-exists="false" ipc-concordant="F04B37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>F04B37/085</classification-symbol><class-title date-revised="2018-01-01"><title-part><CPC-specific-text><text>Regeneration of cryo-pumps</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B37/10" definition-exists="false" ipc-concordant="F04B37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B37/10</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>for special use </text><reference><text>for evacuating by absorption or adsorption <class-ref scheme="cpc">F04B37/02</class-ref>; for evacuating by thermal means <class-ref scheme="cpc">F04B37/06</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B37/12" definition-exists="false" ipc-concordant="F04B37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B37/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to obtain high pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B37/14" definition-exists="false" ipc-concordant="F04B37/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B37/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to obtain high vacuum</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B37/16" definition-exists="false" ipc-concordant="F04B37/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B37/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for nullifying unswept space</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B37/18" definition-exists="false" ipc-concordant="F04B37/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F04B37/18</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>for specific elastic fluids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B37/20" definition-exists="false" ipc-concordant="F04B37/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B37/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for wet gases, e.g. wet air</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B39/00" definition-exists="true" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B39/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups <class-ref scheme="cpc">F04B25/00</class-ref> - <class-ref scheme="cpc">F04B37/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/0005" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>adaptations of pistons</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0011" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0011</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>liquid pistons</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0016" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with valve arranged in the piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0022" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>piston rods</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/0027" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pulsation and noise damping means</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0033" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with encapsulations</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/0038" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0038</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of inlet or outlet channels</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0044" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with vibration damping supports</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/005" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with direct action on the fluid flow using absorptive materials</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0055" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/0061" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using muffler volumes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/0066" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using sidebranch resonators, e.g. Helmholtz resonators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/0072" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by assembly or mounting</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0077" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0077</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by generating oil foam</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0083" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using blow off silencers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0088" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using mechanical tuned resonators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/0094" definition-exists="false" ipc-concordant="F04B39/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0094</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>crankshaft</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/02" definition-exists="true" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubrication </text><reference><text>of machines or engines in general <class-ref scheme="cpc">F01M</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0207" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with lubrication control systems</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0215" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the use of a special lubricant</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0223" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the compressor type </text><reference><text>swash-plate compressors <class-ref scheme="cpc">F04B27/109</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/023" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hermetic compressors</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B39/0238" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0238</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with oil distribution channels</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B39/0246" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the rotating shaft</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B39/0253" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using centrifugal force for transporting the oil</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B39/0261" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an auxiliary oil pump</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B39/0269" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0269</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with device for spraying lubricant or with mist lubrication</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/0276" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pump being of the reciprocating piston type, e.g. oscillating, free-piston compressors</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/0284" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Constructional details, e.g. reservoirs in the casing </text><reference><text>swash-plate compressors <class-ref scheme="cpc">F04B27/0878</class-ref>, <class-ref scheme="cpc">F04B27/109</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/0292" definition-exists="false" ipc-concordant="F04B39/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/0292</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lubrication of pistons or cylinders</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/04" definition-exists="false" ipc-concordant="F04B39/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Measures to avoid lubricant contaminating the pumped fluid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/041" definition-exists="false" ipc-concordant="F04B39/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>sealing for a reciprocating rod </text><reference><text>sealing in general <class-ref scheme="cpc">F16J</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/042" definition-exists="false" ipc-concordant="F04B39/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>sealing being provided on the piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/044" definition-exists="false" ipc-concordant="F04B39/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>sealing with a rolling diaphragm between piston and cylinder</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/045" definition-exists="false" ipc-concordant="F04B39/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Labyrinth-sealing between piston and cylinder</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/047" definition-exists="false" ipc-concordant="F04B39/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing between piston and carter being provided by a bellow</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/048" definition-exists="false" ipc-concordant="F04B39/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing between piston and carter being provided by a diaphragm</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/06" definition-exists="true" ipc-concordant="F04B39/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B39/06</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cooling</text></title-part><title-part><text>Heating</text></title-part><title-part><text>Prevention of freezing</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/062" definition-exists="false" ipc-concordant="F04B39/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling by injecting a liquid in the gas to be compressed</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/064" definition-exists="false" ipc-concordant="F04B39/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling by a cooling jacket in the pump casing</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/066" definition-exists="false" ipc-concordant="F04B39/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling by ventilation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/068" definition-exists="false" ipc-concordant="F04B39/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>prevention of freezing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/08" definition-exists="false" ipc-concordant="F04B39/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Actuation of distribution members</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/10" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adaptations or arrangements of distribution members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/1006" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being ball valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/1013" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being of the poppet valve type</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/102" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being disc valves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/1026" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without spring </text><reference><text><class-ref scheme="cpc">F04B39/1033</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/1033" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>annular disc valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/104" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being parallel flexible strips</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/1046" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combination of in- and outlet valve</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/1053" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being Hoerbigen valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/106" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being parallel non-flexible strips</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/1066" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valve plates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/1073" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being reed valves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/108" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>circular reed valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B39/1086" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>flat annular reed valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/1093" definition-exists="false" ipc-concordant="F04B39/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/1093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the members being low-resistance valves allowing free streaming</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/12" definition-exists="true" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B39/12</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Casings</text></title-part><title-part><text>Cylinders</text></title-part><title-part><text>Cylinder heads</text></title-part><title-part><text>Fluid connections</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/121" definition-exists="false" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Casings</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/122" definition-exists="false" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinder block</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/123" definition-exists="false" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluid connections</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/125" definition-exists="false" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinder heads</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/126" definition-exists="false" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinder liners</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/127" definition-exists="false" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mounting of a cylinder block in a casing</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B39/128" definition-exists="false" ipc-concordant="F04B39/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crankcases</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/14" definition-exists="false" ipc-concordant="F04B39/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Provisions for readily assembling or disassembling</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B39/16" definition-exists="false" ipc-concordant="F04B39/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B39/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filtration</text></title-part><title-part><text>Moisture separation</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B41/00" definition-exists="true" ipc-concordant="F04B41/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B41/00</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Pumping installations or systems specially adapted for elastic fluids </text><reference><text>free-piston pumps specially adapted for elastic fluids or systems incorporating such pumps <class-ref scheme="cpc">F04B31/00</class-ref>; piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for <class-ref scheme="cpc">F04B35/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B41/02" definition-exists="false" ipc-concordant="F04B41/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B41/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having reservoirs</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B41/04" definition-exists="false" ipc-concordant="F04B41/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B41/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Conversion of internal-combustion engine cylinder units to pumps</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B41/06" definition-exists="false" ipc-concordant="F04B41/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B41/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of two or more pumps</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F04B43/00" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Machines or pumps having flexible working members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B43/00" definition-exists="true" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Machines, pumps, or pumping installations having flexible working members </text><reference><text>pumps or pumping installations specially adapted for elastic fluids <class-ref scheme="cpc">F04B45/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B43/0009" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special features</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/0018" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/0027" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/0036" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the flexible member being formed as an O-ring</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/0045" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a number of independent working chambers which are actuated successively by one mechanism</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/0054" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0054</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>particularities of the flexible members</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/0063" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>bell-shaped flexible members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/0072" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of tubular flexible members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/0081" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>systems, control, safety measures</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/009" definition-exists="false" ipc-concordant="F04B43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B43/02" definition-exists="false" ipc-concordant="F04B43/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B43/02</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>having plate-like flexible members, e.g. diaphragms </text><reference><text><class-ref scheme="cpc">F04B43/14</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/021" definition-exists="false" ipc-concordant="F04B43/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plate-like flexible member is pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the plane of the plate-like flexible member and each having its own driving mechanism</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/023" definition-exists="false" ipc-concordant="F04B43/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>double acting plate-like flexible member</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/025" definition-exists="false" ipc-concordant="F04B43/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>two or more plate-like pumping members in parallel</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/026" definition-exists="false" ipc-concordant="F04B43/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>each plate-like pumping flexible member working in its own pumping chamber</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/028" definition-exists="false" ipc-concordant="F04B43/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with in- or outlet valve arranged in the plate-like flexible member </text><reference><text>valve arranged in the piston <class-ref scheme="cpc">F04B53/12</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/04" definition-exists="false" ipc-concordant="F04B43/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having electric drive</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/043" definition-exists="false" ipc-concordant="F04B43/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F04B43/043</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Micropumps</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B43/046" definition-exists="false" ipc-concordant="F04B43/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with piezo-electric drive</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/06" definition-exists="false" ipc-concordant="F04B43/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having fluid drive</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/067" definition-exists="false" ipc-concordant="F04B43/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fluid being actuated directly by a piston</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/073" definition-exists="false" ipc-concordant="F04B43/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the actuating fluid being controlled by at least one valve</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B43/0733" definition-exists="false" ipc-concordant="F04B43/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0733</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B43/0736" definition-exists="false" ipc-concordant="F04B43/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/0736</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more pumping chambers in parallel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B43/08" definition-exists="false" ipc-concordant="F04B43/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having tubular flexible members </text><reference><text><class-ref scheme="cpc">F04B43/12</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/082" definition-exists="false" ipc-concordant="F04B43/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/084" definition-exists="false" ipc-concordant="F04B43/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>F04B43/084</classification-symbol><class-title date-revised="2018-01-01"><title-part><CPC-specific-text><text>the tubular member being deformed by stretching or distortion</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/086" definition-exists="false" ipc-concordant="F04B43/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more tubular flexible members in parallel </text><reference><text><class-ref scheme="cpc">F04B43/1136</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/088" definition-exists="false" ipc-concordant="F04B43/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more tubular flexible members in series </text><reference><text><class-ref scheme="cpc">F04B43/1133</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/09" definition-exists="false" ipc-concordant="F04B43/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having electric drive</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/095" definition-exists="false" ipc-concordant="F04B43/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/095</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Piezo-electric drive</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/10" definition-exists="false" ipc-concordant="F04B43/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having fluid drive</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/107" definition-exists="false" ipc-concordant="F04B43/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fluid being actuated directly by a piston</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/113" definition-exists="false" ipc-concordant="F04B43/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/113</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the actuating fluid being controlled by at least one valve</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B43/1133" definition-exists="false" ipc-concordant="F04B43/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1133</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B43/1136" definition-exists="false" ipc-concordant="F04B43/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1136</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more pumping chambers in parallel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B43/12" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having peristaltic action</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/1207" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating element being a swash plate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/1215" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having no backing plate (deforming of the tube only by rollers)</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/1223" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating elements, e.g. rollers, moving in a straight line during squeezing</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/123" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using an excenter as the squeezing element</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/1238" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1238</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using only one roller as the squeezing element, the roller moving on an arc of a circle during squeezing</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/1246" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the roller being placed at the outside of the tubular flexible member</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/1253" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/1261" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the rollers being placed at the outside of the tubular flexible member</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/1269" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1269</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the rotary axes of the rollers lying in a plane perpendicular to the rotary axis of the driving motor</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/1276" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for pushing the rollers against the tubular flexible member</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/1284" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for pushing the backing-plate against the tubular flexible member</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B43/1292" definition-exists="false" ipc-concordant="F04B43/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B43/1292</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pumps specially adapted for several tubular flexible members</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B43/14" definition-exists="false" ipc-concordant="F04B43/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B43/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having plate-like flexible members</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B45/00" definition-exists="true" ipc-concordant="F04B45/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps or pumping installations having flexible working members and specially adapted for elastic fluids</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B45/02" definition-exists="false" ipc-concordant="F04B45/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having bellows</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/022" definition-exists="false" ipc-concordant="F04B45/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more bellows in parallel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/024" definition-exists="false" ipc-concordant="F04B45/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more bellows in series</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/027" definition-exists="false" ipc-concordant="F04B45/027" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having electric drive</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/033" definition-exists="false" ipc-concordant="F04B45/033" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/033</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having fluid drive</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/0333" definition-exists="false" ipc-concordant="F04B45/033" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/0333</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid being actuated directly by a piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/0336" definition-exists="false" ipc-concordant="F04B45/033" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/0336</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating fluid being controlled by one or more valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B45/04" definition-exists="false" ipc-concordant="F04B45/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/04</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>having plate-like flexible members, e.g. diaphragms </text><reference><text><class-ref scheme="cpc">F04B45/10</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/041" definition-exists="false" ipc-concordant="F04B45/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>double acting plate-like flexible pumping member</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/043" definition-exists="false" ipc-concordant="F04B45/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>two or more plate-like pumping flexible members in parallel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/045" definition-exists="false" ipc-concordant="F04B45/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with in- or outlet valve arranged in the plate-like pumping flexible members</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/047" definition-exists="false" ipc-concordant="F04B45/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having electric drive</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/053" definition-exists="false" ipc-concordant="F04B45/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having fluid drive</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/0533" definition-exists="false" ipc-concordant="F04B45/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/0533</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid being actuated directly by a piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/0536" definition-exists="false" ipc-concordant="F04B45/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/0536</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating fluid being controlled by one or more valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B45/06" definition-exists="false" ipc-concordant="F04B45/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/06</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>having tubular flexible members </text><reference><text><class-ref scheme="cpc">F04B45/02</class-ref>, <class-ref scheme="cpc">F04B45/08</class-ref> take precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/061" definition-exists="false" ipc-concordant="F04B45/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid drive</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/062" definition-exists="false" ipc-concordant="F04B45/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid being actuated directly by a piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/064" definition-exists="false" ipc-concordant="F04B45/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating fluid being controlled by one or more valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/065" definition-exists="false" ipc-concordant="F04B45/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with electric drive</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/067" definition-exists="false" ipc-concordant="F04B45/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having electric drive</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/073" definition-exists="false" ipc-concordant="F04B45/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pumps having fluid drive</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/0733" definition-exists="false" ipc-concordant="F04B45/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/0733</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid being actuated directly by a piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B45/0736" definition-exists="false" ipc-concordant="F04B45/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B45/0736</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating fluid being controlled by one or more valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B45/08" definition-exists="false" ipc-concordant="F04B45/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/08</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>having peristaltic action</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/085" definition-exists="false" ipc-concordant="F04B45/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating element being a swash plate</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B45/10" definition-exists="false" ipc-concordant="F04B45/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B45/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having plate-like flexible members</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B47/00" definition-exists="true" ipc-concordant="F04B47/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F04B47/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps </text><reference><text>by using positive or negative pressurised fluid medium acting directly on the liquid to be pumped <class-ref scheme="cpc">F04F1/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B47/005" definition-exists="false" ipc-concordant="F04B47/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sand trap arrangements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B47/02" definition-exists="false" ipc-concordant="F04B47/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the driving mechanisms being situated at ground level </text><reference><text><class-ref scheme="cpc">F04B47/12</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B47/022" definition-exists="false" ipc-concordant="F04B47/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>driving of the walking beam</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B47/024" definition-exists="false" ipc-concordant="F04B47/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>actuated by muscle power</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B47/026" definition-exists="false" ipc-concordant="F04B47/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pull rods, full rod component parts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B47/028" definition-exists="false" ipc-concordant="F04B47/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>details of the walking beam</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B47/04" definition-exists="false" ipc-concordant="F04B47/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the driving means incorporating fluid means</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B47/06" definition-exists="false" ipc-concordant="F04B47/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having motor-pump units situated at great depth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B47/08" definition-exists="false" ipc-concordant="F04B47/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F04B47/08</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>the motors being actuated by fluid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B47/10" definition-exists="false" ipc-concordant="F04B47/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the units or parts thereof being liftable to ground level by fluid pressure</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B47/12" definition-exists="false" ipc-concordant="F04B47/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having free plunger lifting the fluid to the surface</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B47/14" definition-exists="false" ipc-concordant="F04B47/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B47/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Counterbalancing</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B47/145" definition-exists="false" ipc-concordant="F04B47/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>F04B47/145</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>with fluid means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B49/00" definition-exists="true" ipc-concordant="F04B49/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F04B49/00</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Control </text><CPC-specific-text><text>, e.g. of pump delivery, or pump pressure</text></CPC-specific-text><text> of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups <class-ref scheme="cpc">F04B1/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F04B47/00</class-ref></text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>The classification symbols in group <class-ref scheme="cpc">F04B49/00</class-ref> and subgroups can be followed by additional symbols preceded by the sign &quot;+&quot;. The symbols are applied in subgroups <class-ref scheme="cpc">F04B49/06</class-ref>, <class-ref scheme="cpc">F04B49/08</class-ref>, <class-ref scheme="cpc">F04B49/16</class-ref> and <class-ref scheme="cpc">F04B49/225</class-ref>. The symbols have the meanings as listed below: <pre> <br/><class-ref scheme="not-mapped">+C</class-ref> specially adapted for pumps for elastic fluids, <br/> e.g. compressors <br/><class-ref scheme="not-mapped">+P</class-ref> specially adapted for pumps for liquids</pre></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/002" definition-exists="false" ipc-concordant="F04B49/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hydraulic systems to change the pump delivery</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/005" definition-exists="false" ipc-concordant="F04B49/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/007" definition-exists="false" ipc-concordant="F04B49/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel </text><reference><text>centrifugal pumps <class-ref scheme="cpc">F04D15/0072</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/02" definition-exists="true" ipc-concordant="F04B49/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B49/02</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Stopping, starting, unloading or idling control</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/022" definition-exists="false" ipc-concordant="F04B49/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of pressure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/025" definition-exists="false" ipc-concordant="F04B49/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of floats</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/03" definition-exists="false" ipc-concordant="F04B49/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of valves</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B49/035" definition-exists="false" ipc-concordant="F04B49/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/035</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bypassing</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/04" definition-exists="false" ipc-concordant="F04B49/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Regulating by means of floats </text><reference><text><class-ref scheme="cpc">F04B49/025</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/06" definition-exists="false" ipc-concordant="F04B49/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control using electricity </text><reference><text>regulating by means of floats actuating electric switches <class-ref scheme="cpc">F04B49/04</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/065" definition-exists="false" ipc-concordant="F04B49/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and making use of computers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/08" definition-exists="false" ipc-concordant="F04B49/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Regulating by delivery pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/10" definition-exists="false" ipc-concordant="F04B49/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other safety measures</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/103" definition-exists="false" ipc-concordant="F04B49/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Responsive to speed</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/106" definition-exists="false" ipc-concordant="F04B49/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Responsive to pumped volume</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/12" definition-exists="false" ipc-concordant="F04B49/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B49/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by varying the length of stroke of the working members</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/121" definition-exists="false" ipc-concordant="F04B49/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lost-motion device in the driving mechanism</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/123" definition-exists="false" ipc-concordant="F04B49/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by changing the eccentricity of one element relative to another element</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B49/125" definition-exists="false" ipc-concordant="F04B49/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F04B49/125</classification-symbol><class-title date-revised="2017-05-01"><title-part><CPC-specific-text><text>by changing the eccentricity of the actuation means, e.g. cams or cranks, relative to the driving means, e.g. driving shafts </text><reference><text><class-ref scheme="cpc">F04B49/128</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B49/126" definition-exists="false" ipc-concordant="F04B49/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a double eccenter mechanism</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B49/128" definition-exists="false" ipc-concordant="F04B49/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by changing the eccentricity of the cylinders, e.g. by moving a cylinder block</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/14" definition-exists="false" ipc-concordant="F04B49/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adjusting abutments located in the path of reciprocation</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/16" definition-exists="false" ipc-concordant="F04B49/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adjusting the capacity of dead spaces of working chambers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/18" definition-exists="false" ipc-concordant="F04B49/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2022-02-01" status="published"><classification-symbol>F04B49/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by changing the effective cross-section of the working surface of the piston</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/20" definition-exists="true" ipc-concordant="F04B49/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B49/20</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>by changing the driving speed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B49/22" definition-exists="false" ipc-concordant="F04B49/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of valves </text><reference><text><class-ref scheme="cpc">F04B49/03</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/225" definition-exists="false" ipc-concordant="F04B49/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with throttling valves or valves varying the pump inlet opening or the outlet opening</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B49/24" definition-exists="false" ipc-concordant="F04B49/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bypassing</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B49/243" definition-exists="false" ipc-concordant="F04B49/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by keeping open the inlet valve</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B49/246" definition-exists="false" ipc-concordant="F04B49/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B49/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by keeping open the outlet valve</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B51/00" definition-exists="true" ipc-concordant="F04B51/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B51/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Testing machines, pumps, or pumping installations</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F04B53/00" definition-exists="true" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F04B53/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Component parts, details or accessories not provided for in, or of interest apart from, groups <class-ref scheme="cpc">F04B1/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F04B23/00</class-ref> or <class-ref scheme="cpc">F04B39/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F04B47/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/001" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F04B53/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Noise damping</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/002" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by encapsulation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/003" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by damping supports</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/004" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by mechanical resonators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/005" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Adaptations or arrangements of valves used as foot valves, of suction strainers, or of mud-boxes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/006" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crankshafts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/007" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinder heads</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/008" definition-exists="false" ipc-concordant="F04B53/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Spacing or clearance between cylinder and piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/02" definition-exists="false" ipc-concordant="F04B53/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Packing the free space between cylinders and pistons</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/04" definition-exists="false" ipc-concordant="F04B53/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Draining</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/06" definition-exists="false" ipc-concordant="F04B53/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Venting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/08" definition-exists="true" ipc-concordant="F04B53/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B53/08</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Cooling</text></title-part><title-part><text>Heating</text></title-part><title-part><text>Preventing freezing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/10" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Valves</text></title-part><title-part><text>Arrangement of valves</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1002" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ball valves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1005" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>being formed by two closure members working in series</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1007" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means for guiding the closure member</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/101" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means for limiting the opening height</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1012" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and means for controlling the opening height</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1015" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combinations of ball valves working in parallel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1017" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1017</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Semi-spherical ball valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/102" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Disc valves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1022" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means for guiding the closure member axially</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1025" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the guiding means being provided within the valve opening</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1027" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the guiding means being provided at both sides of the disc</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/103" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flat-annular type disc valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1032" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1032</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Spring-actuated disc valves </text><reference><text><class-ref scheme="cpc">F04B53/1022</class-ref>, <class-ref scheme="cpc">F04B53/103</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1035" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for limiting the opening height</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1037" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1037</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flap valves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/104" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the closure member being a rigid element oscillating around a fixed point</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1042" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of a flexible connection</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1045" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the valve being formed by two elements</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1047" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the valve being formed by one or more flexible elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/105" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>one flexible element oscillating around a fixed point</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1052" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1052</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>two flexible elements oscillating around a fixed point</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1055" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>more than two flexible elements oscillating around a fixed point</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/1057" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the valve being a tube, e.g. normally closed at one end</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/106" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the valve being a membrane</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B53/1062" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>fixed at two or more points at its periphery</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B53/1065" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>fixed at its centre</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B53/1067" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>fixed at its whole periphery and with an opening at its centre</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F04B53/107" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the opening normally being closed by a fixed element</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1072" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the valve being an elastic body, the length thereof changing in the opening direction</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1075" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the valve being a flexible annular ring</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1077" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1077</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flow resistance valves, e.g. without moving parts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/108" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valves characterised by the material</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1082" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>magnetic</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1085" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having means for limiting the opening height </text><reference><text><class-ref scheme="cpc">F04B53/101</class-ref> and <class-ref scheme="cpc">F04B53/1035</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1087" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valve seats</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/109" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/109</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>inlet and outlet valve forming one unit</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/1092" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and one single element forming both the inlet and outlet closure member</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1095" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1095</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valves linked to another valve of another pumping chamber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/1097" definition-exists="false" ipc-concordant="F04B53/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/1097</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for lifting the closure member for pump cleaning purposes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/12" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>arranged in or on pistons</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/121" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the valve being an annular ring surrounding the piston, e.g. an O-ring</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/122" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the piston being free-floating, e.g. the valve being formed between the actuating rod and the piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/123" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flexible valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/124" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oscillating valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/125" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Reciprocating valves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/126" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ball valves</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/127" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Disc valves</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F04B53/128" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Annular disc valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/129" definition-exists="false" ipc-concordant="F04B53/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/129</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Poppet valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/14" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pistons, piston-rods or piston-rod connections</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/141" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/141</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Intermediate liquid piston between the driving piston and the pumped liquid </text><reference><text><class-ref scheme="cpc">F04B43/06</class-ref> and <class-ref scheme="cpc">F04B43/10</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/142" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Intermediate liquid-piston between a driving piston and a driven piston </text><reference><text><class-ref scheme="cpc">F04B9/10</class-ref>, <class-ref scheme="cpc">F04B43/06</class-ref>, <class-ref scheme="cpc">F04B43/10</class-ref> and <class-ref scheme="cpc">F04B53/141</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/143" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing provided on the piston</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/144" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/144</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Adaptation of piston-rods</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/145" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rod shock absorber</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/146" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Piston-rod guiding arrangements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/147" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mounting or detaching of piston rod</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/148" definition-exists="false" ipc-concordant="F04B53/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the piston being provided with channels which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/16" definition-exists="false" ipc-concordant="F04B53/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Casings</text></title-part><title-part><text>Cylinders</text></title-part><title-part><text>Cylinder liners or heads</text></title-part><title-part><text>Fluid connections</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F04B53/162" definition-exists="false" ipc-concordant="F04B53/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/162</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Adaptations of cylinders</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/164" definition-exists="false" ipc-concordant="F04B53/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/164</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stoffing boxes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F04B53/166" definition-exists="false" ipc-concordant="F04B53/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinder liners</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F04B53/168" definition-exists="false" ipc-concordant="F04B53/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/168</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mounting of cylinder liners in cylinders</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/18" definition-exists="true" ipc-concordant="F04B53/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-01-01" status="published"><classification-symbol>F04B53/18</classification-symbol><class-title date-revised="2020-01-01"><title-part><text>Lubricating</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/20" definition-exists="false" ipc-concordant="F04B53/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filtering</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F04B53/22" definition-exists="false" ipc-concordant="F04B53/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B53/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for enabling ready assembly or disassembly</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="true" level="6" additional-only="true" sort-key="F04B201/00" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/00</classification-symbol>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F04B201/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pump parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B201/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Piston parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0201" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0201</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Position of the piston</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/02011" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/02011</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Angular position of a piston rotating around its own axis</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0202" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0202</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Linear speed of the piston</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0203" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0203</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Acceleration of the piston</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0204" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0204</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power on the piston</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0205" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0205</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Piston ring wear</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0206" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0206</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Length of piston stroke</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0207" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0207</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Number of pumping strokes in unit time</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/02071" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/02071</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Total number of pumping strokes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0208" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0208</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Leakage across the piston</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0209" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0209</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Duration of piston stroke</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/021" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed of a piston rotating around its own axis </text><reference><text><class-ref scheme="cpc">F04B7/06</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B201/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carter parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0401" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0401</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carter pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0402" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0402</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubricating oil temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0403" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0403</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carter housing temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0404" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0404</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubricating oil condition</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0405" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0405</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Leakage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0406" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0406</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure change across an oil filter</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B201/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Valve parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0601" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0601</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening times</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/06011" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/06011</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the inlet valve only</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/06012" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/06012</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the outlet valve only</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0602" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0602</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Valve acceleration</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0603" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0603</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Valve wear</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0604" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0604</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Valve noise</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0605" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0605</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Leakage over a valve</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0606" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0606</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening width or height</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/06061" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/06061</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the inlet valve</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/06062" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/06062</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the outlet valve</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B201/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cylinder or housing parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0801" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0801</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0802" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0802</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vibration</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0803" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0803</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Leakage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0804" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0804</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Noise</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0805" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0805</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed of a rotating cylinder block</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0806" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0806</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Resonant frequency</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0807" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0807</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Number of working cylinders</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/0808" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/0808</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Size of the dead volume</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B201/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Parameters of driving or driven means</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1201" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1201</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed of the axis</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1202" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1202</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Torque on the axis</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1203" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1203</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power on the axis</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1204" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1204</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Position of a rotating inclined plate</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/12041" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/12041</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Angular position</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1205" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1205</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Position of a non-rotating inclined plate</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/12051" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/12051</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Angular position</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1206" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1206</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed of a rotating inclined plate</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1207" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1207</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Wear of the bearings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1208" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1208</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Angular position of the shaft</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1209" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1209</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Radial force on the bearings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/121" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Load on the sucker rod</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1211" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1211</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Position of the walking beam</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1212" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1212</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oil pressure in the bearings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/1213" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1213</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Eccentricity of an outer annular cam</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/124" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Coupling parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B201/1241" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/1241</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Engagement</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B201/127" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2201/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Braking parameters</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F04B203/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Motor parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B203/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of rotating electric motors</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0201" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0201</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Current</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0202" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0202</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Voltage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0203" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0203</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnetic flux</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0204" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>F04B2203/0204</classification-symbol><class-title date-revised="2018-01-01"><title-part><text>Frequency of the electric current</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0205" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0205</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0206" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0206</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vibration</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0207" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0207</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Torque</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0208" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0208</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0209" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0209</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/021" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubricating-oil temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0211" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0211</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Noise</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0212" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0212</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Amplitude of the electric current</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0213" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0213</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pulses per unit of time (pulse motor)</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0214" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0214</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Number of working motor-pump units</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B203/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of linear electric motors</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0401" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0401</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Current</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0402" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0402</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Voltage</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0403" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0403</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Magnetic flux</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0404" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>F04B2203/0404</classification-symbol><class-title date-revised="2018-01-01"><title-part><text>Frequency of the electric current</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0405" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0405</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0406" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0406</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vibration</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0407" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0407</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Force</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0408" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0408</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0409" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0409</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Linear speed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/041" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubricating-oil temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0411" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0411</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Noise</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B203/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of internal combustion engines</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0601" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0601</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0602" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0602</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vibration</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0603" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0603</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Torque</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0604" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0604</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0605" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0605</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0606" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0606</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubricating-oil temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0607" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0607</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fuel consumption</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B203/06071" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/06071</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>position of the carburettor valve</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B203/09" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of linear hydraulic motors</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0901" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0901</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening time of the valves</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0902" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0902</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Liquid pressure in a working chamber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/0903" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/0903</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Position of the driving piston</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B203/091" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/091</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening time of the valves</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B203/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of linear elastic fluid motors</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/1001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/1001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening time of the valves</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B203/11" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of a gas turbine</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/1101" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/1101</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed of the turbine</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/1102" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/1102</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow rate of the driving fluid</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/1103" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/1103</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotation sense of the turbine</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B203/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of rotating hydraulic motors</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/1201" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/1201</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotational speed</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B203/1202" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2203/1202</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure at the motor inlet</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F04B205/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/01" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure before the pump inlet</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure in the inlet chamber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/03" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure in the compression chamber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure in the outlet chamber</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/05" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure after the pump outlet</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure in a (hydraulic) circuit</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/061" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>after a throttle</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/062" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>before a throttle</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/063" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in a reservoir linked to the pump outlet</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/064" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in a reservoir linked to the pump inlet</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/065" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>between two stages in a multi-stage pump</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/07" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure difference over the pump</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/08" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure difference over a throttle</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/0801" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/0801</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the throttle being a filter</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/09" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow through the pump</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inlet temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/11" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Outlet temperature</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/111" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/111</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>after a throttle</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/112" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/112</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>between two stages in a multi-stage pump</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/12" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure pulsations before the pump</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/13" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure pulsations after the pump</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/14" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Viscosity</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/15" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/15</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>By-passing over the pump</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/151" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/151</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening width of a bypass valve</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/16" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening or closing of a valve in a circuit</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/17" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Opening width of a throttling device</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/171" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/171</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>before the pump inlet</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/172" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/172</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>after the pump outlet</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/173" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/173</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in a circuit</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/18" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure in a control cylinder/piston unit</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B205/50" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Presence of foreign matter in the fluid</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/501" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/501</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of solid particles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B205/503" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2205/503</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of gas in a liquid flow, e.g. gas bubbles</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F04B207/00" definition-exists="true" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>External parameters</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B207/01" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Load in general</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B207/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>External pressure</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B207/03" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>External temperature</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B207/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Settings</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/041" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of flow</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0411" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/0411</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>maximum</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0412" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/0412</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>minimum</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0413" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/0413</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>medium</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/042" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of pressure</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0421" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/0421</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>maximum</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0422" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F04B2207/0422</classification-symbol><class-title date-revised="2017-05-01"><title-part><text>minimum</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0423" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/0423</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>medium</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/043" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of time</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/044" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the rotational speed of the driving motor</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0441" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/0441</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>maximum</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F04B207/0442" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/0442</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>minimum</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/045" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the resonant frequency of the unit motor-pump</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/046" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of length of piston stroke</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/047" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the nominal power of the driving motor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/048" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of a reference voltage of the driving motor</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F04B207/70" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Warnings</text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/701" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/701</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sound</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/702" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/702</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Light</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/703" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/703</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stopping</text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F04B207/704" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F04B2207/704</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Idling</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme>