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666 lines
340 KiB
XML
666 lines
340 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="F15B" definition-exists="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL</text></title-part><title-part><text>FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS</text></title-part><title-part><text>DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> In this subclass, the following terms are used with the meaning stated: <subnote type="bullet"><note-paragraph>"Telemotor" means a system or device in which a substantially constant amount of fluid is trapped between an input member and an output member to act as a fluid link; </note-paragraph><note-paragraph>"Servomotor" means a fluid-pressure actuator, e.g. a piston and cylinder, directly controlled by a valve or other device which is responsive to operation of an initial controlling member; "Servomotor" does not cover a telemotor. The initial controlling member may be adjacent to the servomotor or at a distance, and may be, for example a hand lever. </note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F15B1/00" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B1/00" definition-exists="true" ipc-concordant="F15B1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Installations or systems with accumulators</text></title-part><title-part><text>Supply reservoir or sump assemblies</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B1/02" definition-exists="true" ipc-concordant="F15B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B1/02</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Installations or systems with accumulators</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B1/021" definition-exists="true" ipc-concordant="F15B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>used for damping</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B1/022" definition-exists="true" ipc-concordant="F15B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>used as an emergency power source, e.g. in case of pump failure</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B1/024" definition-exists="true" ipc-concordant="F15B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>used as a supplementary power source, e.g. to store energy in idle periods to balance pump load</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B1/025" definition-exists="true" ipc-concordant="F15B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>used for thermal compensation, e.g. to collect expanded fluid and to return it to the system as the system fluid cools down</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B1/027" definition-exists="true" ipc-concordant="F15B1/027" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B1/027</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>having accumulator charging devices</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B1/0275" definition-exists="false" ipc-concordant="F15B1/027" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B1/0275</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more pilot valves, e.g. for independent setting of the cut-in and cut-out pressures</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B1/033" definition-exists="false" ipc-concordant="F15B1/033" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/033</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with electrical control means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B1/04" definition-exists="true" ipc-concordant="F15B1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B1/04</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Accumulators</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B1/045" definition-exists="false" ipc-concordant="F15B1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dead weight accumulators</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B1/08" definition-exists="true" ipc-concordant="F15B1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a gas cushion</text></title-part><title-part><text>Gas charging devices</text></title-part><title-part><text>Indicators or floats therefor</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B1/083" definition-exists="true" ipc-concordant="F15B1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the accumulator having a fusible plug</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B1/086" definition-exists="true" ipc-concordant="F15B1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the gas cushion being entirely enclosed by the separating means, e.g. foam or gas-filled balls</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B1/10" definition-exists="true" ipc-concordant="F15B1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with flexible separating means</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B1/103" definition-exists="true" ipc-concordant="F15B1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the separating means being bellows</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B1/106" definition-exists="true" ipc-concordant="F15B1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the way housing components are assembled</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B1/12" definition-exists="false" ipc-concordant="F15B1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B1/12</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>attached at their periphery </text><reference><text>flexible separating means in the form of a tube <class-ref scheme="cpc">F15B1/16</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B1/125" definition-exists="true" ipc-concordant="F15B1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the attachment means </text><reference><text><class-ref scheme="cpc">F15B1/14</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B1/14" definition-exists="false" ipc-concordant="F15B1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of a rigid annular supporting member</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B1/16" definition-exists="false" ipc-concordant="F15B1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in the form of a tube</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B1/165" definition-exists="true" ipc-concordant="F15B1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the form of a bladder</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B1/18" definition-exists="true" ipc-concordant="F15B1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Anti-extrusion means</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B1/20" definition-exists="true" ipc-concordant="F15B1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>fixed to the separating means</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B1/22" definition-exists="true" ipc-concordant="F15B1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Liquid port constructions</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B1/24" definition-exists="true" ipc-concordant="F15B1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with rigid separating means, e.g. pistons</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B1/26" definition-exists="true" ipc-concordant="F15B1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supply reservoir or sump assemblies</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B1/265" definition-exists="true" ipc-concordant="F15B1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B1/265</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>with pressurised main reservoir</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B3/00" definition-exists="true" ipc-concordant="F15B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Intensifiers or fluid-pressure converters, e.g. pressure exchangers</text></title-part><title-part><text>Conveying pressure from one fluid system to another, without contact between the fluids </text><CPC-specific-text><reference><text>fluid-driven pumps <class-ref scheme="cpc">F04B9/08</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B5/00" definition-exists="true" ipc-concordant="F15B5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B5/00</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or <u>vice versa</u></text></title-part><title-part><text>Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities </text><reference><text><class-ref scheme="cpc">F15B9/00</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B5/003" definition-exists="false" ipc-concordant="F15B5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B5/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by variation of the pressure in a nozzle or the like, e.g. nozzle-flapper system</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B5/006" definition-exists="false" ipc-concordant="F15B5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B5/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with electrical means, e.g. electropneumatic transducer </text><reference><text><class-ref scheme="cpc">F15B5/003</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F15B7/00" date-revised="2013-01-01" status="published"><classification-symbol>F15B7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid-pressure actuator systems </text><reference><text>systems peculiar to the control of a particular machine or apparatus covered in a single other class, see the class for such machine or apparatus</text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This heading relates to moving members into one or more definite positions by means of fluid pressure. Pump, motor and control features so far as not peculiar to this purpose are classified in the relevant classes.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B7/00" definition-exists="true" ipc-concordant="F15B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B7/00</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Systems in which the movement produced is definitely related to the output of a volumetric pump</text></title-part><title-part><text>Telemotors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B7/001" definition-exists="true" ipc-concordant="F15B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B7/001</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>With multiple inputs, e.g. for dual control</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B7/003" definition-exists="false" ipc-concordant="F15B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B7/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with multiple outputs</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B7/005" definition-exists="true" ipc-concordant="F15B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B7/005</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>With rotary or crank input</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B7/006" definition-exists="false" ipc-concordant="F15B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B7/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rotary pump input</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B7/008" definition-exists="false" ipc-concordant="F15B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B7/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with rotary output</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B7/02" definition-exists="false" ipc-concordant="F15B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Systems with continuously-operating input and output apparatus</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B7/04" definition-exists="true" ipc-concordant="F15B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B7/04</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>In which the ratio between pump stroke and motor stroke varies with the resistance against the motor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B7/06" definition-exists="true" ipc-concordant="F15B7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details </text><reference><text><class-ref scheme="cpc">F15B15/00</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B7/08" definition-exists="true" ipc-concordant="F15B7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Input units</text></title-part><title-part><text>Master units</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B7/10" definition-exists="true" ipc-concordant="F15B7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B7/10</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Compensation of the liquid content in a system </text><reference><text><class-ref scheme="cpc">F15B7/08</class-ref> takes precedence</text></reference></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B9/00" definition-exists="true" ipc-concordant="F15B9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B9/00</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Servomotors with follow-up action, </text><CPC-specific-text><text>e.g. obtained by feed-back control,</text></CPC-specific-text><text> i.e. in which the position of the actuated member conforms with that of the controlling member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B9/02" definition-exists="false" ipc-concordant="F15B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with servomotors of the reciprocatable or oscillatable type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B9/03" definition-exists="false" ipc-concordant="F15B9/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with electrical control means </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F15B9/07</class-ref>, <class-ref scheme="cpc">F15B9/09</class-ref>, <class-ref scheme="cpc">F15B9/17</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B9/04" definition-exists="false" ipc-concordant="F15B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>controlled by varying the output of a pump with variable capacity</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B9/06" definition-exists="false" ipc-concordant="F15B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>controlled by means using a fluid jet</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B9/07" definition-exists="false" ipc-concordant="F15B9/07" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with electrical control means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B9/08" definition-exists="false" ipc-concordant="F15B9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>controlled by valves affecting the fluid feed or the fluid outlet of the servomotor </text><reference><text><class-ref scheme="cpc">F15B9/06</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B9/09" definition-exists="false" ipc-concordant="F15B9/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with electrical control means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B9/10" definition-exists="true" ipc-concordant="F15B9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B9/12" definition-exists="true" ipc-concordant="F15B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B9/14" definition-exists="false" ipc-concordant="F15B9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F15B9/14</classification-symbol><class-title date-revised="2017-05-01"><title-part><text>with rotary servomotors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B9/16" definition-exists="true" ipc-concordant="F15B9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B9/16</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Systems essentially having two or more interacting servomotors </text><CPC-specific-text><text>, e.g. multi-stage </text><reference><text><class-ref scheme="cpc">F15B18/00</class-ref>, <class-ref scheme="cpc">F15B20/00</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B9/17" definition-exists="false" ipc-concordant="F15B9/17" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B9/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with electrical control means</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F15B11/00" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B11/00" definition-exists="true" ipc-concordant="F15B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Servomotor systems without provision for follow-up action; </text><CPC-specific-text><text>Circuits therefor</text></CPC-specific-text><reference><text><class-ref scheme="cpc">F15B3/00</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B11/003" definition-exists="true" ipc-concordant="F15B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/003</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Systems with load-holding valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B11/006" definition-exists="false" ipc-concordant="F15B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B11/02" definition-exists="false" ipc-concordant="F15B11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F15B11/02</classification-symbol><class-title date-revised="2017-05-01"><title-part><text>Systems essentially incorporating special features for controlling the speed or actuating force of an output member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/022" definition-exists="true" ipc-concordant="F15B11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in which a rapid approach stroke is followed by a slower, high-force working stroke </text><reference><text><class-ref scheme="cpc">F15B11/0325</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/024" definition-exists="true" ipc-concordant="F15B11/024" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/024</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>by means of differential connection of the servomotor lines, e.g. regenerative circuits</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B11/0243" definition-exists="false" ipc-concordant="F15B11/024" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2011/0243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the regenerative circuit being activated or deactivated automatically</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B11/0246" definition-exists="false" ipc-concordant="F15B11/024" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2011/0246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with variable regeneration flow</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/028" definition-exists="true" ipc-concordant="F15B11/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for controlling the actuating force </text><reference><text><class-ref scheme="cpc">F15B11/024</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/032" definition-exists="true" ipc-concordant="F15B11/032" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/032</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>by means of fluid-pressure converters</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/0325" definition-exists="false" ipc-concordant="F15B11/032" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/0325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid-pressure converter increasing the working force after an approach stroke</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/036" definition-exists="true" ipc-concordant="F15B11/036" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/036</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>by means of servomotors having a plurality of working chambers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/0365" definition-exists="false" ipc-concordant="F15B11/036" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/0365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tandem constructions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/04" definition-exists="false" ipc-concordant="F15B11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for controlling the speed </text><reference><text><class-ref scheme="cpc">F15B11/024</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/0406" definition-exists="true" ipc-concordant="F15B11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/0406</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>during starting or stopping </text><reference><text><class-ref scheme="cpc">F15B11/048</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/0413" definition-exists="false" ipc-concordant="F15B11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/0413</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in one direction only, with no control in the reverse direction, e.g. check valve in parallel with a throttle valve</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/042" definition-exists="true" ipc-concordant="F15B11/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>F15B11/042</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>by means in the feed line </text><CPC-specific-text><text>, i.e. "meter in"</text></CPC-specific-text><reference><text><class-ref scheme="cpc">F15B11/046</class-ref>, <class-ref scheme="cpc">F15B11/05</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/0423" definition-exists="true" ipc-concordant="F15B11/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/0423</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>by controlling pump output or bypass, other than to maintain constant speed</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/0426" definition-exists="true" ipc-concordant="F15B11/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/0426</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by controlling the number of pumps or parallel valves switched on</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/044" definition-exists="true" ipc-concordant="F15B11/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>F15B11/044</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>by means in the return line </text><CPC-specific-text><text>, i.e. "meter out"</text></CPC-specific-text><reference><text><class-ref scheme="cpc">F15B11/046</class-ref>, <class-ref scheme="cpc">F15B11/05</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/0445" definition-exists="true" ipc-concordant="F15B11/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/0445</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with counterbalance valves, e.g. to prevent overrunning or for braking</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/046" definition-exists="false" ipc-concordant="F15B11/046" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>depending on the position of the working member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/048" definition-exists="false" ipc-concordant="F15B11/048" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with deceleration control</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/05" definition-exists="true" ipc-concordant="F15B11/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/05</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F15B11/161</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/055" definition-exists="true" ipc-concordant="F15B11/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/055</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>by adjusting the pump output or bypass</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B11/06" definition-exists="true" ipc-concordant="F15B11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving features specific to the use of a compressible medium, e.g. air, steam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/064" definition-exists="false" ipc-concordant="F15B11/064" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with devices for saving the compressible medium</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/068" definition-exists="false" ipc-concordant="F15B11/068" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with valves for gradually putting pneumatic systems under pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/072" definition-exists="false" ipc-concordant="F15B11/072" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/072</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combined pneumatic-hydraulic systems </text><reference><text><class-ref scheme="cpc">F15B11/032</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/0725" definition-exists="false" ipc-concordant="F15B11/072" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/0725</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/076" definition-exists="false" ipc-concordant="F15B11/076" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/076</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with pneumatic drive or displacement and speed control or stopping by hydraulic braking</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B11/08" definition-exists="false" ipc-concordant="F15B11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with only one servomotor</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/10" definition-exists="false" ipc-concordant="F15B11/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the servomotor position is a function of the pressure </text><CPC-specific-text><text>also pressure regulators as operating means for such systems, the device itself may be a position indicating system</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/12" definition-exists="true" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/12</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>providing distinct intermediate positions</text></title-part><title-part><text>with step-by-step action</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/121" definition-exists="false" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>providing distinct intermediate positions </text><reference><text><class-ref scheme="cpc">F15B11/13</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/122" definition-exists="false" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of actuators with multiple stops</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/123" definition-exists="false" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of actuators with fluid-operated stops</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/125" definition-exists="false" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/126" definition-exists="false" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of actuators of the standard type with special circuit controlling means </text><reference><text><class-ref scheme="cpc">F15B11/125</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/127" definition-exists="false" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with step-by-step action</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B11/128" definition-exists="false" ipc-concordant="F15B11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of actuators of the standard type with special circuit controlling means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/13" definition-exists="false" ipc-concordant="F15B11/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using </text><CPC-specific-text><text>separate dosing</text></CPC-specific-text><text> chambers of predetermined volume</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/15" definition-exists="true" ipc-concordant="F15B11/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/15</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>with special provision for automatic return</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B11/16" definition-exists="true" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B11/16</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>with two or more servomotors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/161" definition-exists="false" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/161</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with sensing of servomotor demand or load</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/162" definition-exists="true" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/162</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>for giving priority to particular servomotors or users</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/163" definition-exists="true" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/165" definition-exists="true" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for adjusting the pump output or bypass in response to demand</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/166" definition-exists="false" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlling a pilot pressure in response to the load, i.e. supply to at least one user is regulated by adjusting either the system pilot pressure or one or more of the individual pilot command pressures</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/167" definition-exists="false" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/167</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using pilot pressure to sense the demand</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/168" definition-exists="true" ipc-concordant="F15B11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/168</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an isolator valve (duplicating valve), i.e. at least one load sense [LS] pressure is derived from a work port load sense pressure but is not a work port pressure itself</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/17" definition-exists="true" ipc-concordant="F15B11/17" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using two or more pumps</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/18" definition-exists="false" ipc-concordant="F15B11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>used in combination for obtaining stepwise operation of a single controlled member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/183" definition-exists="false" ipc-concordant="F15B11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Linear stepwise operation</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/186" definition-exists="false" ipc-concordant="F15B11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rotary stepwise operation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/20" definition-exists="true" ipc-concordant="F15B11/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/20</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>controlling several interacting or sequentially-operating members</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B11/205" definition-exists="true" ipc-concordant="F15B11/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B11/205</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>the position of the actuator controlling the fluid flow to the subsequent actuator</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B11/22" definition-exists="true" ipc-concordant="F15B11/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B11/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Synchronisation of the movement of two or more servomotors</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B13/00" definition-exists="true" ipc-concordant="F15B13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details of servomotor systems </text><reference><CPC-specific-text><text><class-ref scheme="cpc">F15B1/04</class-ref>, <class-ref scheme="cpc">F15B1/26</class-ref>, <class-ref scheme="cpc">F15B3/00</class-ref>, <class-ref scheme="cpc">F15B7/08</class-ref>, <class-ref scheme="cpc">F15B11/02</class-ref>, <class-ref scheme="cpc">F15B11/10</class-ref>,</text></CPC-specific-text><text> <class-ref scheme="cpc">F15B15/00</class-ref> take precedence</text></reference><CPC-specific-text><text>; Valves for servomotor systems</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B13/002" definition-exists="false" ipc-concordant="F15B13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Modular valves, i.e. consisting of an assembly of interchangeable components</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B13/004" definition-exists="false" ipc-concordant="F15B13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cartridge valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B13/006" definition-exists="false" ipc-concordant="F15B13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Modular components with multiple uses, e.g. kits for either normally-open or normally-closed valves, interchangeable or reprogrammable manifolds</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B13/008" definition-exists="false" ipc-concordant="F15B13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Throttling member profiles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B13/01" definition-exists="true" ipc-concordant="F15B13/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/01</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Locking-valves or other detent </text><CPC-specific-text><text>i.e. load-holding</text></CPC-specific-text><text> devices</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/015" definition-exists="false" ipc-concordant="F15B13/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using an enclosed pilot flow valve</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B13/02" definition-exists="true" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/02</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Fluid distribution or supply devices characterised by their adaptation to the control of servomotors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/021" definition-exists="true" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/021</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Valves for interconnecting the fluid chambers of an actuator</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/022" definition-exists="true" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/022</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Flow-dividers; Priority valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/023" definition-exists="true" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Excess flow valves, e.g. for locking cylinders in case of hose burst</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/024" definition-exists="false" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F15B13/024</classification-symbol><class-title date-revised="2017-05-01"><title-part><CPC-specific-text><text>Pressure relief valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/025" definition-exists="false" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pressure reducing valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/026" definition-exists="false" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pressure compensating valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/027" definition-exists="true" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Check valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/028" definition-exists="false" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Shuttle valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/029" definition-exists="true" ipc-concordant="F15B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Counterbalance valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/04" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for use with a single servomotor</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B13/0401" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0401</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valve members; Fluid interconnections therefor</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0402" definition-exists="true" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0402</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for linearly sliding valves, e.g. spool valves</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0403" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0403</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>a secondary valve member sliding within the main spool, e.g. for regeneration flow </text><reference><text><class-ref scheme="cpc">F15B13/0418</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0405" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0405</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for seat valves, i.e. poppet valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0406" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0406</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for rotary valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0407" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0407</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for damping the valve member movement</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B13/0409" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/0409</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Position sensing or feedback of the valve member</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B13/041" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two positions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B13/0412" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/0412</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with three positions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B13/0413" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/0413</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with four or more positions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B13/0414" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/0414</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dosing devices</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B13/0416" definition-exists="true" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/0416</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>with means or adapted for load sensing</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0417" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0417</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0418" definition-exists="false" ipc-concordant="F15B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0418</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Load sensing elements sliding within a hollow main valve spool</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B13/042" definition-exists="false" ipc-concordant="F15B13/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>operated by fluid pressure </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F15B13/0401</class-ref>, <class-ref scheme="cpc">F15B13/0416</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0422" definition-exists="true" ipc-concordant="F15B13/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/0422</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>with manually-operated pilot valves, e.g. joysticks</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0424" definition-exists="false" ipc-concordant="F15B13/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0424</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the joysticks being provided with electrical switches or sensors</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0426" definition-exists="false" ipc-concordant="F15B13/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0426</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid-operated pilot valves, i.e. multiple stage valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B13/0428" definition-exists="false" ipc-concordant="F15B13/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/0428</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with switchable internal or external pilot pressure source</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/043" definition-exists="true" ipc-concordant="F15B13/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/043</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>with electrically-controlled pilot valves</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0431" definition-exists="false" ipc-concordant="F15B13/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0431</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the electrical control resulting in an on-off function</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0433" definition-exists="false" ipc-concordant="F15B13/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0433</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pilot valves being pressure control valves </text><reference><text><class-ref scheme="cpc">F15B13/0435</class-ref>, <class-ref scheme="cpc">F15B13/0436</class-ref>, <class-ref scheme="cpc">F15B13/0438</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0435" definition-exists="false" ipc-concordant="F15B13/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0435</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pilot valves being sliding valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0436" definition-exists="false" ipc-concordant="F15B13/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0436</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pilot valves being of the steerable jet type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0438" definition-exists="false" ipc-concordant="F15B13/043" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0438</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the pilot valves being of the nozzle-flapper type</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B13/044" definition-exists="true" ipc-concordant="F15B13/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/044</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>operated by electrically-controlled means, e.g. solenoids, torque-motors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0442" definition-exists="false" ipc-concordant="F15B13/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0442</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with proportional solenoid allowing stable intermediate positions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0444" definition-exists="false" ipc-concordant="F15B13/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0444</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with rotary electric motor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0446" definition-exists="false" ipc-concordant="F15B13/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0446</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with moving coil, e.g. voice coil</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B13/0448" definition-exists="false" ipc-concordant="F15B13/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2013/0448</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Actuation by solenoid and permanent magnet</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B13/06" definition-exists="false" ipc-concordant="F15B13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for use with two or more servomotors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B13/07" definition-exists="false" ipc-concordant="F15B13/07" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in distinct sequence</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B13/08" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Assemblies of units, each for the control of a single servomotor only</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B13/0803" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0803</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Modular units</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0807" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0807</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Manifolds</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/081" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Laminated constructions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0814" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0814</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Monoblock manifolds</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0817" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0817</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiblock manifolds</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0821" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0821</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Attachment or sealing of modular units to each other</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0825" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0825</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the modular elements being mounted on a common member, e.g. on a rail</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0828" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0828</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by sealing means of the modular units</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0832" definition-exists="true" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0832</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Modular valves</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0835" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0835</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cartridge type valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0839" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0839</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stacked plate type valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0842" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0842</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Monoblock type valves, e.g. with multiple valve spools in a common housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0846" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0846</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrical details</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/085" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrical controllers</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0853" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0853</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric circuit boards</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0857" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0857</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrical connecting means, e.g. plugs, sockets</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/086" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sensing means, e.g. pressure sensors</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0864" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0864</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Signalling means, e.g. LEDs</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0867" definition-exists="true" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0867</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Data bus systems</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0871" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0871</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Channels for fluid</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0875" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0875</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Channels for electrical components, e.g. for cables or sensors</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B13/0878" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0878</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assembly of modular units</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0882" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0882</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using identical modular elements</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0885" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0885</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using valves combined with other components</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F15B13/0889" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0889</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valves combined with electrical components</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="14" additional-only="false" sort-key="F15B13/0892" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0892</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Valves combined with fluid components</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F15B13/0896" definition-exists="false" ipc-concordant="F15B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/0896</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using different types or sizes of valves</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B13/10" definition-exists="false" ipc-concordant="F15B13/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special arrangements for operating the actuated device </text><CPC-specific-text><text>with or</text></CPC-specific-text><text> without using fluid pressure, e.g. for emergency use</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B13/12" definition-exists="false" ipc-concordant="F15B13/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special measures for increasing the sensitivity of the system</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B13/14" definition-exists="false" ipc-concordant="F15B13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B13/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special measures for giving the operating person a "feeling" of the response of the actuated device</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B13/16" definition-exists="true" ipc-concordant="F15B13/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B13/16</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Special measures for feedback </text><CPC-specific-text><text>, e.g. by a follow-up device</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B15/00" definition-exists="true" ipc-concordant="F15B15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/00</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Fluid-actuated devices for displacing a member from one position to another</text></title-part><title-part><text>Gearing associated therewith</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B15/02" definition-exists="false" ipc-concordant="F15B15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F15B15/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/04" definition-exists="false" ipc-concordant="F15B15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with oscillating cylinder</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/06" definition-exists="true" ipc-concordant="F15B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for mechanically converting rectilinear movement into non- rectilinear movement</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/061" definition-exists="false" ipc-concordant="F15B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by unidirectional means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/063" definition-exists="true" ipc-concordant="F15B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Actuator having both linear and rotary output, i.e. dual action actuator</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/065" definition-exists="false" ipc-concordant="F15B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the motor being of the rack-and-pinion type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/066" definition-exists="false" ipc-concordant="F15B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the motor being of the scotch yoke type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/068" definition-exists="false" ipc-concordant="F15B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the motor being of the helical type</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B15/08" definition-exists="true" ipc-concordant="F15B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/08</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Characterised by the construction of the motor unit</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/082" definition-exists="true" ipc-concordant="F15B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/082</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>the motor being of the slotted cylinder type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/084" definition-exists="true" ipc-concordant="F15B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/084</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>the motor being of the rodless piston type, e.g. with cable, belt or chain</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/086" definition-exists="false" ipc-concordant="F15B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with magnetic coupling</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/088" definition-exists="false" ipc-concordant="F15B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B15/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the motor using combined actuation, e.g. electric and fluid actuation</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/10" definition-exists="true" ipc-concordant="F15B15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/10</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>the motor being of diaphragm type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/103" definition-exists="true" ipc-concordant="F15B15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using inflatable bodies that contract when fluid pressure is applied, e.g. pneumatic artificial muscles or McKibben-type actuators</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/106" definition-exists="false" ipc-concordant="F15B15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the motor being of the pinching-roller type</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/12" definition-exists="true" ipc-concordant="F15B15/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the oscillating-vane or curved-cylinder type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/125" definition-exists="true" ipc-concordant="F15B15/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the curved-cylinder type</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/14" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the straight-cylinder type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/1404" definition-exists="true" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/1404</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>in clusters, e.g. multiple cylinders in one block</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/1409" definition-exists="true" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/1409</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>with two or more independently movable working pistons</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/1414" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1414</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with non-rotatable piston</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1419" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1419</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of non-circular cross-section</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/1423" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1423</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Component parts; Constructional details</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1428" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1428</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinders </text><reference><text><class-ref scheme="cpc">F15B15/1438</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1433" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1433</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>End caps </text><reference><text><class-ref scheme="cpc">F15B15/1438</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1438" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1438</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cylinder to end cap assemblies</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B15/1442" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F15B15/1442</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>End cap sealings</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1447" definition-exists="true" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1447</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pistons; Piston to piston rod assemblies</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B15/1452" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F15B15/1452</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Piston sealings</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1457" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1457</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Piston rods </text><reference><text><class-ref scheme="cpc">F15B15/1447</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B15/1461" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F15B15/1461</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Piston rod sealings</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1466" definition-exists="true" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/1466</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Hollow piston sliding over a stationary rod inside the cylinder</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1471" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1471</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guiding means other than in the end cap </text><reference><text><class-ref scheme="cpc">F15B15/1466</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1476" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special return means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/148" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lost-motion means between the piston and the output</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/1485" definition-exists="true" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/1485</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special measures for cooling or heating</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/149" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/149</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluid interconnections, e.g. fluid connectors, passages</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B15/1495" definition-exists="false" ipc-concordant="F15B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2015/1495</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with screw mechanism attached to the piston</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/16" definition-exists="false" ipc-concordant="F15B15/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the telescopic type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/165" definition-exists="false" ipc-concordant="F15B15/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with synchronisation of sections</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/17" definition-exists="false" ipc-concordant="F15B15/17" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/17</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of differential-piston type</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B15/18" definition-exists="true" ipc-concordant="F15B15/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/18</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Combined units comprising both motor and pump</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B15/19" definition-exists="false" ipc-concordant="F15B15/19" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/19</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pyrotechnical actuators</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B15/20" definition-exists="false" ipc-concordant="F15B15/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F15B15/20</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Other details </text><CPC-specific-text><text>, e.g. assembly with regulating devices</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/202" definition-exists="false" ipc-concordant="F15B15/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/202</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Externally-operated valves mounted in or on the actuator</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/204" definition-exists="false" ipc-concordant="F15B15/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/204</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control means for piston speed or actuating force without external control, e.g. control valve inside the piston </text><reference><text><class-ref scheme="cpc">F15B11/02</class-ref>, <class-ref scheme="cpc">F15B15/22</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B15/206" definition-exists="false" ipc-concordant="F15B15/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2015/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combined actuation, e.g. electric and fluid actuated</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B15/208" definition-exists="false" ipc-concordant="F15B15/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2015/208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special fluid pressurisation means, e.g. thermal or electrolytic</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/22" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for accelerating or decelerating the stroke</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/221" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/221</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for accelerating the stroke, e.g. by area increase</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/222" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/223" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/224" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/224</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having a piston which closes off fluid outlets in the cylinder bore by its own movement</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/225" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with valve stems operated by contact with the piston end face or with the cylinder wall</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/226" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having elastic elements, e.g. springs, rubber pads</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/227" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/227</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having an auxiliary cushioning piston within the main piston or the cylinder end face</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/228" definition-exists="false" ipc-concordant="F15B15/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/228</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having shock absorbers mounted outside the actuator housing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/24" definition-exists="false" ipc-concordant="F15B15/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for restricting the stroke</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/26" definition-exists="true" ipc-concordant="F15B15/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B15/26</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Locking mechanisms</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/261" definition-exists="true" ipc-concordant="F15B15/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using positive interengagement, e.g. balls and grooves, for locking in the end positions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/262" definition-exists="false" ipc-concordant="F15B15/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using friction, e.g. brake pads</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/264" definition-exists="true" ipc-concordant="F15B15/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Screw mechanisms attached to the piston</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/265" definition-exists="false" ipc-concordant="F15B15/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for rodless pistons or slotted cylinders</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B15/267" definition-exists="false" ipc-concordant="F15B15/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2015/267</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Manual locking or release</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B15/268" definition-exists="false" ipc-concordant="F15B15/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B2015/268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluid supply for locking or release independent of actuator pressurisation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B15/28" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for indicating the position, e.g. end of stroke</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/2807" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2807</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/2815" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F15B15/2815</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Position sensing, i.e. means for continuous measurement of position, e.g. LVDT</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/2823" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2823</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by a screw mechanism attached to the piston</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/283" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a cable wrapped on a drum and attached to the piston</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/2838" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2838</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with out using position sensors, e.g. by volume flow measurement or pump speed</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/2846" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2846</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using detection of markings, e.g. markings on the piston rod</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/2853" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2853</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using potentiometers</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/2861" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2861</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using magnetic means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/2869" definition-exists="true" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2869</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using electromagnetic radiation, e.g. radar or microwaves</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15B15/2876" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2876</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using optical means, e.g. laser</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15B15/2884" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2884</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using sound, e.g. ultrasound</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B15/2892" definition-exists="false" ipc-concordant="F15B15/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B15/2892</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the attachment means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B17/00" definition-exists="true" ipc-concordant="F15B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of telemotor and servomotor systems</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B17/02" definition-exists="false" ipc-concordant="F15B17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B17/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which a telemotor operates the control member of a servomotor</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B18/00" definition-exists="true" ipc-concordant="F15B18/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B18/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Parallel arrangements of independent servomotor systems</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B19/00" definition-exists="true" ipc-concordant="F15B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Testing; </text><CPC-specific-text><text>Calibrating; Fault detection or monitoring; Simulation or modelling of</text></CPC-specific-text><text> fluid-pressure systems or apparatus not otherwise provided for</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B19/002" definition-exists="false" ipc-concordant="F15B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B19/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Calibrating</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B19/005" definition-exists="false" ipc-concordant="F15B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B19/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fault detection or monitoring</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B19/007" definition-exists="false" ipc-concordant="F15B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B19/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Simulation or modelling</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B20/00" definition-exists="true" ipc-concordant="F15B20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B20/00</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Safety arrangements for fluid actuator systems</text></title-part><title-part><text>Applications of safety devices in fluid actuator systems</text></title-part><title-part><text>Emergency measures for fluid actuator systems</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B20/001" definition-exists="false" ipc-concordant="F15B20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B20/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Double valve requiring the use of both hands simultaneously</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B20/002" definition-exists="true" ipc-concordant="F15B20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B20/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrical failure</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B20/004" definition-exists="true" ipc-concordant="F15B20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B20/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluid pressure supply failure</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B20/005" definition-exists="true" ipc-concordant="F15B20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B20/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Leakage; Spillage; Hose burst</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B20/007" definition-exists="false" ipc-concordant="F15B20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B20/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Overload</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B20/008" definition-exists="true" ipc-concordant="F15B20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B20/008</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Valve failure</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15B21/00" definition-exists="false" ipc-concordant="F15B21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B21/00</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Common features of fluid actuator systems</text></title-part><title-part><text>Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/001" definition-exists="false" ipc-concordant="F15B21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Servomotor systems with fluidic control</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/003" definition-exists="false" ipc-concordant="F15B21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Systems with different interchangeable components, e.g. using preassembled kits</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/005" definition-exists="false" ipc-concordant="F15B21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Filling or draining of fluid systems</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/006" definition-exists="true" ipc-concordant="F15B21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B21/006</classification-symbol><class-title date-revised="2019-01-01"><title-part><CPC-specific-text><text>Compensation or avoidance of ambient pressure variation</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/008" definition-exists="true" ipc-concordant="F15B21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Reduction of noise or vibration</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/02" definition-exists="true" ipc-concordant="F15B21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B21/02</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Servomotor systems with programme control derived from a store or timing device</text></title-part><title-part><text>Control devices therefor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/04" definition-exists="true" ipc-concordant="F15B21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B21/04</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Special measures taken in connection with the properties of the fluid</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/041" definition-exists="false" ipc-concordant="F15B21/041" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B21/041</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Removal or measurement of solid or liquid contamination, e.g. filtering</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/042" definition-exists="true" ipc-concordant="F15B21/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-08-01" status="published"><classification-symbol>F15B21/042</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Controlling the temperature of the fluid</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B21/0423" definition-exists="false" ipc-concordant="F15B21/0423" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-08-01" status="published"><classification-symbol>F15B21/0423</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Cooling</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15B21/0427" definition-exists="true" ipc-concordant="F15B21/0427" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-08-01" status="published"><classification-symbol>F15B21/0427</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Heating</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/044" definition-exists="true" ipc-concordant="F15B21/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B21/044</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/045" definition-exists="true" ipc-concordant="F15B21/045" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B21/045</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Compensating for variations in viscosity or temperature</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/047" definition-exists="true" ipc-concordant="F15B21/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B21/047</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Preventing foaming, churning or cavitation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/048" definition-exists="true" ipc-concordant="F15B21/048" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>F15B21/048</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/06" definition-exists="true" ipc-concordant="F15B21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of special fluids, e.g. liquid metal</text></title-part><title-part><text>Special adaptations of fluid-pressure systems, or control of elements therefor, to the use of such fluids</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/065" definition-exists="true" ipc-concordant="F15B21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Use of electro- or magnetosensitive fluids, e.g. electrorheological fluid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/08" definition-exists="false" ipc-concordant="F15B21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Servomotor systems incorporating electrically operated control means </text><reference><text><class-ref scheme="cpc">F15B21/02</class-ref>, </text><CPC-specific-text><text><class-ref scheme="cpc">F15B21/065</class-ref></text></CPC-specific-text><text> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/082" definition-exists="false" ipc-concordant="F15B21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with different modes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/085" definition-exists="true" ipc-concordant="F15B21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a data bus, e.g. "CANBUS"</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/087" definition-exists="false" ipc-concordant="F15B21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control strategy, e.g. with block diagram</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/10" definition-exists="true" ipc-concordant="F15B21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B21/10</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Delay devices or arrangements</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/12" definition-exists="true" ipc-concordant="F15B21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B21/12</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Fluid oscillators or pulse generators</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15B21/125" definition-exists="false" ipc-concordant="F15B21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15B21/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of a rotating valve</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15B21/14" definition-exists="true" ipc-concordant="F15B21/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-01-01" status="published"><classification-symbol>F15B21/14</classification-symbol><class-title date-revised="2019-01-01"><title-part><text>Energy-recuperation means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F15B201/00" 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>F15B2201/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accumulators</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B201/20" 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>F15B2201/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accumulator cushioning means</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/205" 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>F15B2201/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using gas</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/21" 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>F15B2201/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using springs</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/215" 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>F15B2201/215</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using weights</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/22" 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>F15B2201/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using elastic housings</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B201/30" 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>F15B2201/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accumulator separating means</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/305" 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>F15B2201/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without separating means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/31" 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>F15B2201/31</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having rigid separating means, e.g. pistons</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/312" 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>F15B2201/312</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sealings therefor, e.g. piston rings</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/315" 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>F15B2201/315</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having flexible separating means</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3151" 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>F15B2201/3151</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flexible separating means being diaphragms or membranes</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3152" 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>F15B2201/3152</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flexible separating means being bladders</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3153" 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>F15B2201/3153</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flexible separating means being bellows</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3154" 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>F15B2201/3154</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flexible separating means being completely enclosed, e.g. using gas-filled balls or foam</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3155" 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>F15B2201/3155</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the material of the flexible separating means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3156" 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>F15B2201/3156</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by their attachment</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3157" 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>F15B2201/3157</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sealings for the flexible separating means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/3158" 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>F15B2201/3158</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Guides for the flexible separating means, e.g. for a collapsed bladder</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/32" 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>F15B2201/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple separating means, e.g. with an auxiliary piston sliding within a main piston, multiple membranes or combinations thereof</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B201/40" 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>F15B2201/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Constructional details of accumulators not otherwise provided for</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/405" 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>F15B2201/405</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Housings</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/4053" 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>F15B2201/4053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the material</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/4056" 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>F15B2201/4056</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the attachment of housing components</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/41" 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>F15B2201/41</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Liquid ports</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/411" 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>F15B2201/411</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having valve means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/413" 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>F15B2201/413</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple liquid ports</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/415" 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>F15B2201/415</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gas ports</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/4155" 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>F15B2201/4155</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having valve means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/42" 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>F15B2201/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat recuperators for isothermal compression and expansion</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/43" 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>F15B2201/43</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Anti-extrusion means</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B201/435" 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>F15B2201/435</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being fixed to the separating means</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B201/50" 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>F15B2201/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monitoring, detection and testing means for accumulators</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/505" 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>F15B2201/505</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Testing of accumulators, e.g. for testing tightness</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/51" 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>F15B2201/51</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure detection</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/515" 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>F15B2201/515</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Position detection for separating means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B201/60" 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>F15B2201/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Assembling or methods for making accumulators</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/605" 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>F15B2201/605</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Assembling or methods for making housings therefor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/61" 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>F15B2201/61</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Assembling or methods for making separating means therefor</text></title-part></class-title></classification-item>
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|
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B201/615" 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>F15B2201/615</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Assembling or methods for making ports therefor</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F15B211/00" 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>F15B2211/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Circuits for servomotor systems</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B211/20" 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>F15B2211/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid pressure source, e.g. accumulator or variable axial piston pump</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/205" 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>F15B2211/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Systems with pumps</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/20507" 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>F15B2211/20507</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Type of prime mover</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20515" 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>F15B2211/20515</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electric motor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20523" 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>F15B2211/20523</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Internal combustion engine</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/2053" 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>F15B2211/2053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Type of pump</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20538" 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>F15B2211/20538</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>constant capacity</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20546" 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>F15B2211/20546</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>variable capacity</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/20553" 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>F15B2211/20553</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with pilot circuit, e.g. for controlling a swash plate</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20561" 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>F15B2211/20561</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>reversible</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20569" 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>F15B2211/20569</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>capable of working as pump and motor</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/20576" 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>F15B2211/20576</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with multiple pumps</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20584" 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>F15B2211/20584</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of pumps with high and low capacity</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/20592" 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>F15B2211/20592</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of pumps for supplying high and low pressure</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/21" 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>F15B2211/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/212" 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>F15B2211/212</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure sources being accumulators</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/214" 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>F15B2211/214</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure sources being hydrotransformers</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/216" 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>F15B2211/216</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure sources being pneumatic-to-hydraulic converters</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/218" 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>F15B2211/218</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure sources being pyrotechnical charges</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/25" 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>F15B2211/25</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure control functions</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/251" 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>F15B2211/251</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>High pressure control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/252" 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>F15B2211/252</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Low pressure control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/253" 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>F15B2211/253</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure margin control, e.g. pump pressure in relation to load pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/255" 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>F15B2211/255</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow control functions</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/26" 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>F15B2211/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power control functions</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/265" 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>F15B2211/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of multiple pressure sources</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/2652" 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>F15B2211/2652</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without priority</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/2654" 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>F15B2211/2654</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>one or more pressure sources having priority</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/2656" 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>F15B2211/2656</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by control of the pumps</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/2658" 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>F15B2211/2658</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by control of the prime movers</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/27" 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>F15B2211/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Directional control by means of the pressure source</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/275" 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>F15B2211/275</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of the prime mover, e.g. hydraulic control</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B211/30" 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>F15B2211/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Directional control</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/305" 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>F15B2211/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type of valves</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/30505" 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>F15B2211/30505</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-return valves, i.e. check valves</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/3051" 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>F15B2211/3051</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cross-check valves</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/30515" 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>F15B2211/30515</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Load holding valves</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/3052" 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>F15B2211/3052</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shuttle valves</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/30525" 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>F15B2211/30525</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Directional control valves, e.g. 4/3-directional control valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/3053" 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>F15B2211/3053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>In combination with a pressure compensating valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/30535" 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>F15B2211/30535</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure compensating valve is arranged between pressure source and directional control valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/3054" 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>F15B2211/3054</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure compensating valve is arranged between directional control valve and output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/30545" 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>F15B2211/30545</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure compensating valve is arranged between output member and directional control valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/3055" 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>F15B2211/3055</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure compensating valve is arranged between directional control valve and return line</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/30555" 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>F15B2211/30555</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inlet and outlet of the pressure compensating valve being connected to the directional control valve</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/3056" 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>F15B2211/3056</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Assemblies of multiple valves</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/30565" 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>F15B2211/30565</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/3057" 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>F15B2211/3057</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two valves, one for each port of a double-acting output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/30575" 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>F15B2211/30575</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in a Wheatstone Bridge arrangement (also half bridges)</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/3058" 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>F15B2211/3058</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode </text><reference><text>directional control valves having a regenerative position <class-ref scheme="cpc">F15B2211/3133</class-ref>; directional control valves having a floating position <class-ref scheme="cpc">F15B2211/3127</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/30585" 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>F15B2211/30585</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single valve for multiple output members</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/3059" 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>F15B2211/3059</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple valves for multiple output members</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/30595" 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>F15B2211/30595</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with additional valves between the groups of valves for multiple output members</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/31" 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>F15B2211/31</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the positions of the valve element</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/3105" 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>F15B2211/3105</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Neutral or centre positions</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/3111" 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>F15B2211/3111</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pump port being closed in the centre position, e.g. so-called closed centre</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/3116" 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>F15B2211/3116</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pump port being open in the centre position, e.g. so-called open centre</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/3122" 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>F15B2211/3122</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special positions other than the pump port being connected to working ports or the working ports being connected to the return line</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/3127" 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>F15B2211/3127</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Floating position connecting the working ports and the return line</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/3133" 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>F15B2211/3133</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Regenerative position connecting the working ports or connecting the working ports to the pump, e.g. for high-speed approach stroke</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/3138" 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>F15B2211/3138</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the positions being discrete</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/3144" 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>F15B2211/3144</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the positions being continuously variable, e.g. as realised by proportional valves</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/315" 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>F15B2211/315</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the connections of the valve or valves in the circuit</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/31505" 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>F15B2211/31505</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and a return line</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31511" 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>F15B2211/31511</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single pressure source</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31517" 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>F15B2211/31517</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple pressure sources</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/31523" 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>F15B2211/31523</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and an output member</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31529" 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>F15B2211/31529</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single pressure source and a single output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31535" 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>F15B2211/31535</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple pressure sources and a single output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31541" 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>F15B2211/31541</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single pressure source and multiple output members</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31547" 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>F15B2211/31547</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple pressure sources and multiple output members</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/31552" 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>F15B2211/31552</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to an output member and a return line</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31558" 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>F15B2211/31558</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31564" 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>F15B2211/31564</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple output members</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/3157" 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>F15B2211/3157</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source, an output member and a return line</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31576" 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>F15B2211/31576</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single pressure source and a single output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31582" 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>F15B2211/31582</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple pressure sources and a single output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31588" 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>F15B2211/31588</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a single pressure source and multiple output members</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/31594" 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>F15B2211/31594</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having multiple pressure sources and multiple output members</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/32" 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>F15B2211/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type of actuation</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/321" 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>F15B2211/321</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>mechanically</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/322" 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>F15B2211/322</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by biasing means, e.g. spring-actuated</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/323" 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>F15B2211/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the biasing means being adjustable</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/324" 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>F15B2211/324</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>manually, e.g. by using a lever or pedal</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/325" 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>F15B2211/325</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by an output member of the circuit</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/326" 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>F15B2211/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with follow-up action</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/327" 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>F15B2211/327</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>electrically or electronically</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/328" 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>F15B2211/328</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with signal modulation, e.g. pulse width modulation [PWM]</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/329" 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>F15B2211/329</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by fluid pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/35" 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>F15B2211/35</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Directional control combined with flow control</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/351" 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>F15B2211/351</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow control by regulating means in feed line, i.e. meter-in control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/353" 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>F15B2211/353</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow control by regulating means in return line, i.e. meter-out control</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/355" 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>F15B2211/355</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pilot pressure control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/36" 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>F15B2211/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pilot pressure sensing</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/365" 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>F15B2211/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Directional control combined with flow control and pressure control</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B211/40" 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>F15B2211/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow control</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/405" 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>F15B2211/405</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type of flow control means or valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/40507" 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>F15B2211/40507</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with constant throttles or orifices</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/40515" 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>F15B2211/40515</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with variable throttles or orifices</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/40523" 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>F15B2211/40523</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with flow dividers</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/4053" 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>F15B2211/4053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using valves</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/40538" 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>F15B2211/40538</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using volumetric pumps or motors</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/40546" 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>F15B2211/40546</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with flow combiners</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/40553" 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>F15B2211/40553</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with pressure compensating valves</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/40561" 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>F15B2211/40561</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure compensating valve arranged upstream of the flow control means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/40569" 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>F15B2211/40569</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure compensating valve arranged downstream of the flow control means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/40576" 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>F15B2211/40576</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Assemblies of multiple valves</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/40584" 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>F15B2211/40584</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flow control means arranged in parallel with a check valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/40592" 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>F15B2211/40592</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with multiple valves in parallel flow paths,</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/41" 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>F15B2211/41</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the positions of the valve element</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/411" 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>F15B2211/411</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the positions being discrete</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/413" 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>F15B2211/413</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the positions being continuously variable, e.g. as realised by proportional valves</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/415" 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>F15B2211/415</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the connections of the flow control means in the circuit</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/41509" 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>F15B2211/41509</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and a directional control valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/41518" 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>F15B2211/41518</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to multiple pressure sources</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/41527" 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>F15B2211/41527</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to an output member and a directional control valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/41536" 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>F15B2211/41536</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to multiple ports of an output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/41545" 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>F15B2211/41545</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to multiple output members</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/41554" 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>F15B2211/41554</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a return line and a directional control valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/41563" 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>F15B2211/41563</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and a return line</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/41572" 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>F15B2211/41572</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and an output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/41581" 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>F15B2211/41581</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to an output member and a return line</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/4159" 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>F15B2211/4159</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source, an output member and a return line</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/42" 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>F15B2211/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type of actuation</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/421" 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>F15B2211/421</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>mechanically</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/422" 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>F15B2211/422</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by biasing means, e.g. spring-actuated</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/423" 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>F15B2211/423</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>manually, e.g. by using a lever or pedal</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/424" 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>F15B2211/424</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by an output member of the circuit</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/425" 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>F15B2211/425</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with follow-up action</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/426" 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>F15B2211/426</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>electrically or electronically</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/427" 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>F15B2211/427</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with signal modulation, e.g. using pulse width modulation [PWM]</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/428" 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>F15B2211/428</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by fluid pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/45" 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>F15B2211/45</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of bleed-off flow, e.g. control of bypass flow to the return line</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/455" 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>F15B2211/455</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of flow in the feed line, i.e. meter-in control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/46" 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>F15B2211/46</classification-symbol><class-title date-revised="2017-05-01"><title-part><text>Control of flow in the return line, i.e. meter-out control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/465" 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>F15B2211/465</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow control with pressure compensation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/47" 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>F15B2211/47</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow control in one direction only</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/473" 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>F15B2211/473</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without restriction in the reverse direction</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/476" 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>F15B2211/476</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flow in the reverse direction being blocked</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B211/50" 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>F15B2211/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure control</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/505" 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>F15B2211/505</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type of pressure control means</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/50509" 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>F15B2211/50509</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure control means controlling a pressure upstream of the pressure control means</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/50518" 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>F15B2211/50518</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using pressure relief valves</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/50527" 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>F15B2211/50527</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using cross-pressure relief valves</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/50536" 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>F15B2211/50536</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using unloading valves controlling the supply pressure by diverting fluid to the return line</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/50545" 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>F15B2211/50545</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using braking valves to maintain a back pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/50554" 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>F15B2211/50554</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/50563" 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>F15B2211/50563</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure control means controlling a differential pressure</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/50572" 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>F15B2211/50572</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a pressure compensating valve for controlling the pressure difference across a flow control valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/50581" 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>F15B2211/50581</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using counterbalance valves</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/5059" 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>F15B2211/5059</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using double counterbalance valves</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/51" 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>F15B2211/51</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the positions of the valve element</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/511" 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>F15B2211/511</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the positions being discrete</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/513" 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>F15B2211/513</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the positions being continuously variable, e.g. as realised by proportional valves</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/515" 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>F15B2211/515</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the connections of the pressure control means in the circuit</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5151" 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>F15B2211/5151</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and a directional control valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/5152" 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>F15B2211/5152</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to multiple pressure sources</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5153" 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>F15B2211/5153</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to an output member and a directional control valve</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/5154" 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>F15B2211/5154</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to multiple ports of an output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/5155" 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>F15B2211/5155</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to multiple output members</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5156" 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>F15B2211/5156</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a return line and a directional control valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5157" 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>F15B2211/5157</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and a return line</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5158" 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>F15B2211/5158</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to a pressure source and an output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5159" 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>F15B2211/5159</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being connected to an output member and a return line</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/52" 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>F15B2211/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type of actuation</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/521" 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>F15B2211/521</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>mechanically</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/522" 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>F15B2211/522</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by biasing means, e.g. spring-actuated</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/523" 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>F15B2211/523</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>manually, e.g. by using a lever or pedal</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/524" 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>F15B2211/524</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by an output member of the circuit</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/525" 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>F15B2211/525</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with follow-up action</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/526" 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>F15B2211/526</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>electrically or electronically</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/527" 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>F15B2211/527</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with signal modulation, e.g. pulse width modulation [PWM]</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/528" 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>F15B2211/528</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>actuated by fluid pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/55" 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>F15B2211/55</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/555" 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>F15B2211/555</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for assuring a minimum pressure, e.g. by using a back pressure valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/56" 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>F15B2211/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of an upstream pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/565" 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>F15B2211/565</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of a downstream pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/57" 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>F15B2211/57</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of a differential pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/575" 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>F15B2211/575</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pilot pressure control</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5753" 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>F15B2211/5753</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for closing a valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/5756" 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>F15B2211/5756</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for opening a valve</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B211/60" 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>F15B2211/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Circuit components or control therefor</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/605" 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>F15B2211/605</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Load sensing circuits</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6051" 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>F15B2211/6051</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having valve means between output member and the load sensing circuit</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6052" 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>F15B2211/6052</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using check valves</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6054" 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>F15B2211/6054</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using shuttle valves</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6055" 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>F15B2211/6055</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using pressure relief valves</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6057" 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>F15B2211/6057</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using directional control valves</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6058" 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>F15B2211/6058</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with isolator valves</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/61" 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>F15B2211/61</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Secondary circuits</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/611" 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>F15B2211/611</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Diverting circuits, e.g. for cooling or filtering</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/613" 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>F15B2211/613</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Feeding circuits</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/615" 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>F15B2211/615</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filtering means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/62" 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>F15B2211/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling or heating means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/625" 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>F15B2211/625</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accumulators</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/63" 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>F15B2211/63</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electronic controllers</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6303" 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>F15B2211/6303</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using input signals</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6306" 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>F15B2211/6306</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a pressure</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/6309" 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>F15B2211/6309</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure being a pressure source supply pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/6313" 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>F15B2211/6313</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure being a load pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/6316" 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>F15B2211/6316</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the pressure being a pilot pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/632" 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>F15B2211/632</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a flow rate</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/6323" 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>F15B2211/6323</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flow rate being a pressure source flow rate</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/6326" 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>F15B2211/6326</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the flow rate being an output member flow rate</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/633" 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>F15B2211/633</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a state of the prime mover, e.g. torque or rotational speed</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6333" 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>F15B2211/6333</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a state of the pressure source, e.g. swash plate angle</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6336" 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>F15B2211/6336</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a state of the output member, e.g. position, speed or acceleration</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/634" 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>F15B2211/634</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a state of a valve</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6343" 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>F15B2211/6343</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a temperature</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/6346" 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>F15B2211/6346</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>representing a state of input means, e.g. joystick position</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/635" 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>F15B2211/635</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6355" 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>F15B2211/6355</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having valve means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/65" 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>F15B2211/65</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods of control of the load sensing pressure</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/651" 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>F15B2211/651</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the way the load pressure is communicated to the load sensing circuit</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/652" 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>F15B2211/652</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the load sensing pressure being different from the load pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/653" 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>F15B2211/653</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the load sensing pressure being higher than the load pressure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/654" 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>F15B2211/654</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the load sensing pressure being lower than the load pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/655" 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>F15B2211/655</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods of contamination control, i.e. methods of control of the cleanliness of circuit components or of the pressure fluid</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/66" 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>F15B2211/66</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Temperature control methods</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/665" 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>F15B2211/665</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods of control using electronic components</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6651" 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>F15B2211/6651</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of the prime mover, e.g. control of the output torque or rotational speed</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6652" 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>F15B2211/6652</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of the pressure source, e.g. control of the swash plate angle</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6653" 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>F15B2211/6653</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6654" 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>F15B2211/6654</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flow rate control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6655" 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>F15B2211/6655</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Power control, e.g. combined pressure and flow rate control</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6656" 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>F15B2211/6656</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Closed loop control, i.e. control using feedback</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6657" 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>F15B2211/6657</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Open loop control, i.e. control without feedback</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/6658" 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>F15B2211/6658</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control using different modes, e.g. four-quadrant-operation, working mode and transportation mode</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/67" 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>F15B2211/67</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods for controlling pilot pressure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B211/70" 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>F15B2211/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Output members, e.g. hydraulic motors or cylinders or control therefor</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/705" 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>F15B2211/705</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type of output members or actuators</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7051" 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>F15B2211/7051</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Linear output members</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/7052" 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>F15B2211/7052</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Single-acting output members</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/7053" 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>F15B2211/7053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Double-acting output members</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/7054" 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>F15B2211/7054</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Having equal piston areas</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/7055" 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>F15B2211/7055</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having more than two chambers</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F15B211/7056" 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>F15B2211/7056</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tandem cylinders</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/7057" 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>F15B2211/7057</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>being of the telescopic type</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7058" 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>F15B2211/7058</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary output members</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/71" 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>F15B2211/71</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Multiple output members, e.g. multiple hydraulic motors or cylinders</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7107" 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>F15B2211/7107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the output members being mechanically linked</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7114" 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>F15B2211/7114</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with direct connection between the chambers of different actuators</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/7121" 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>F15B2211/7121</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the chambers being connected in series</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/7128" 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>F15B2211/7128</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the chambers being connected in parallel</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7135" 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>F15B2211/7135</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of output members of different types, e.g. single-acting cylinders with rotary motors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7142" 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>F15B2211/7142</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the output members being arranged in multiple groups</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/715" 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>F15B2211/715</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having braking means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/72" 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>F15B2211/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having locking means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/75" 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>F15B2211/75</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of speed of the output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/755" 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>F15B2211/755</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of acceleration or deceleration of the output member</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/76" 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>F15B2211/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of force or torque of the output member</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/761" 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>F15B2211/761</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of a negative load, i.e. of a load generating hydraulic energy</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/763" 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>F15B2211/763</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of torque of the output member by means of a variable capacity motor, i.e. by a secondary control on the motor</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/765" 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>F15B2211/765</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of position or angle of the output member</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7653" 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>F15B2211/7653</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>at distinct positions, e.g. at the end position</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7656" 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>F15B2211/7656</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with continuous position control</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/77" 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>F15B2211/77</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of direction of movement of the output member</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7708" 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>F15B2211/7708</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in one direction only</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7716" 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>F15B2211/7716</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with automatic return</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7725" 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>F15B2211/7725</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with automatic reciprocation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7733" 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>F15B2211/7733</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>providing vibrating movement, e.g. dither control for emptying a bucket</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/7741" 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>F15B2211/7741</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with floating mode, e.g. using a direct connection between both lines of a double-acting cylinder</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/775" 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>F15B2211/775</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/78" 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>F15B2211/78</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of multiple output members</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/781" 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>F15B2211/781</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>one or more output members having priority</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/782" 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>F15B2211/782</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Concurrent control, e.g. synchronisation of two or more actuators</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/783" 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>F15B2211/783</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sequential control</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/785" 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>F15B2211/785</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compensation of the difference in flow rate in closed fluid circuits using differential actuators</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B211/80" 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>F15B2211/80</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other types of control related to particular problems or conditions</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/85" 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>F15B2211/85</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control during special operating conditions</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/851" 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>F15B2211/851</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>during starting</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/853" 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>F15B2211/853</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>during stopping</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/855" 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>F15B2211/855</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Testing of fluid pressure systems</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/857" 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>F15B2211/857</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monitoring of fluid pressure systems</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/86" 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>F15B2211/86</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control during or prevention of abnormal conditions</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8603" 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>F15B2211/8603</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being an obstacle</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8606" 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>F15B2211/8606</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being a shock</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8609" 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>F15B2211/8609</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being cavitation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8613" 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>F15B2211/8613</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being oscillations</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8616" 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>F15B2211/8616</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being noise or vibration</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/862" 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>F15B2211/862</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being electric or electronic failure</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/8623" 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>F15B2211/8623</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electric supply failure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/8626" 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>F15B2211/8626</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electronic controller failure, e.g. software, EMV, electromagnetic interference</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/863" 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>F15B2211/863</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being a hydraulic or pneumatic failure</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/8633" 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>F15B2211/8633</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure source supply failure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/8636" 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>F15B2211/8636</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Circuit failure, e.g. valve or hose failure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F15B211/864" 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>F15B2211/864</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Failure of an output member, e.g. actuator or motor failure</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8643" 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>F15B2211/8643</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being a human failure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8646" 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>F15B2211/8646</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the abnormal condition being hysteresis</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/865" 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>F15B2211/865</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Prevention of failures</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/87" 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>F15B2211/87</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Detection of failures</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/875" 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>F15B2211/875</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control measures for coping with failures</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8752" 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>F15B2211/8752</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Emergency operation mode, e.g. fail-safe operation mode</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8755" 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>F15B2211/8755</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Emergency shut-down</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8757" 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>F15B2211/8757</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using redundant components or assemblies</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/88" 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>F15B2211/88</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control measures for saving energy</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/885" 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>F15B2211/885</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control specific to the type of fluid, e.g. specific to magnetorheological fluid</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F15B211/8855" 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>F15B2211/8855</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Compressible fluids, e.g. specific to pneumatics</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/89" 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>F15B2211/89</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control specific for achieving vacuum or "negative pressure"</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B211/895" 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>F15B2211/895</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manual override</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F15B215/00" 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>F15B2215/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid-actuated devices for displacing a member from one position to another</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F15B215/30" 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>F15B2215/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Constructional details thereof</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F15B215/305" 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>F15B2215/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the use of special materials</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme> |