blabla/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-F28D.xml

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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="F28D" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>F28D</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT </text><reference><text>fluid heaters having heat generating means and heat transferring means <class-ref scheme="cpc">F24H</class-ref>; furnaces <class-ref scheme="cpc">F27</class-ref>; details of heat-exchange apparatus of general</text></reference></title-part></class-title><notes-and-warnings><note type="warning"><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F28D1/00" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/00</classification-symbol>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D1/00" definition-exists="true" ipc-concordant="F28D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators </text><reference><text><class-ref scheme="cpc">F28D5/00</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D1/02" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with heat-exchange conduits immersed in the body of fluid</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D1/0206" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat exchangers immersed in a large body of liquid </text><reference><text>apparatus using liquid heat storage material <class-ref scheme="cpc">F28D20/0034</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/0213" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0213</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for heating or cooling a liquid in a tank</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/022" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for immersion in a natural body of water, e.g. marine radiators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D1/0226" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an intermediate heat-transfer medium, e.g. thermosiphon radiators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D1/0233" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0233</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with air flow channels</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/024" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an air driving element</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D1/0246" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>heat-exchange elements having several adjacent conduits forming a whole, e.g. blocks</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D1/0253" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2001/0253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Particular components</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D1/026" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2001/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cores</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F28D1/0266" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2001/0266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Particular core assemblies, e.g. having different orientations or having different geometric features</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F28D1/0273" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2001/0273</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having special shape, e.g. curved, annular</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F28D1/028" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2001/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with empty spaces or with additional elements integrated into the cores</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D1/0286" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2001/0286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Radiating plates;  Decorative panels</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F28D1/0293" definition-exists="false" ipc-concordant="F28D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2001/0293</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with grooves for integration of conduits</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D1/03" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with plate-like or laminated conduits </text><CPC-specific-text><reference><text>stacked plates having one or more openings therein to form tubular heat-exchange passages <class-ref scheme="cpc">F28F3/086</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/0308" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0308</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits being formed by paired plates touching each other </text><reference><text><class-ref scheme="cpc">F28D1/0358</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0316" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0316</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assemblies of conduits in parallel </text><reference><text><class-ref scheme="cpc">F28D1/0325</class-ref>, <class-ref scheme="cpc">F28D1/035</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0325" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/0333" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0333</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plates having integrated connecting members</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F28D1/0341" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0341</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with U-flow or serpentine-flow inside the conduits</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/035" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with U-flow or serpentine-flow inside the conduits </text><reference><text><class-ref scheme="cpc">F28D1/0341</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/0358" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0358</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits being formed by bent plates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/0366" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0366</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits being formed by spaced plates with inserted elements </text><reference><text><class-ref scheme="cpc">F28D1/0358</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0375" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0375</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0383" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0383</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with U-flow or serpentine-flow inside the conduits</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/0391" definition-exists="false" ipc-concordant="F28D1/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0391</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>a single plate being bent to form one or more conduits</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D1/04" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with tubular conduits </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F28D1/0246</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/0408" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0408</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids </text><reference><text><class-ref scheme="cpc">F28F9/0234</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0417" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0417</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0426" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0426</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/0435" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0435</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combination of units extending one behind the other </text><reference><text><class-ref scheme="cpc">F28D1/0452</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/0443" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0443</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combination of units extending one beside or one above the other </text><reference><text><class-ref scheme="cpc">F28D1/0452</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/0452" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0452</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combination of units extending one behind the other with units extending one beside or one above the other</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0461" definition-exists="false" ipc-concordant="F28D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0461</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combination of different types of heat exchanger, e.g. radiator combined with tube-and-shell heat exchanger; Arrangement of conduits for heat exchange between at least two media and for heat exchange between at least one medium and the large body of fluid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/047" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits being bent, e.g. in a serpentine or zig-zag</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0471" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0471</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a non-circular cross-section </text><reference><text><class-ref scheme="cpc">F28D1/0473</class-ref>, <class-ref scheme="cpc">F28D1/0476</class-ref>, <class-ref scheme="cpc">F28D1/0478</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0472" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0472</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits being helically or spirally coiled</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/0473" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0473</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a non-circular cross-section</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0475" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0475</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a single U-bend</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/0476" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a non-circular cross-section</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0477" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0477</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits being bent in a serpentine or zig-zag</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/0478" definition-exists="false" ipc-concordant="F28D1/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0478</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a non-circular cross-section</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D1/053" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits being straight</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/05308" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05308</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators </text><reference><text><class-ref scheme="cpc">F28D1/05358</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/05316" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05316</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assemblies of conduits connected to common headers, e.g. core type radiators </text><reference><text><class-ref scheme="cpc">F28D1/05366</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/05325" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow, e.g. change of flow direction </text><reference><text><class-ref scheme="cpc">F28D1/05341</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/05333" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05333</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with multiple rows of conduits or with multi-channel conduits </text><reference><text><class-ref scheme="cpc">F28D1/05341</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/05341" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05341</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D1/0535" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/0535</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a non-circular cross-section</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/05358" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05358</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F28D1/05366" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05366</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Assemblies of conduits connected to common headers, e.g. core type radiators</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F28D1/05375" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05375</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow, e.g. change of flow direction </text><reference><text><class-ref scheme="cpc">F28D1/05391</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F28D1/05383" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05383</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with multiple rows of conduits or with multi-channel conduits </text><reference><text><class-ref scheme="cpc">F28D1/05391</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F28D1/05391" definition-exists="false" ipc-concordant="F28D1/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/05391</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D1/06" definition-exists="false" ipc-concordant="F28D1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D3/00" definition-exists="true" ipc-concordant="F28D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits </text><reference><text><class-ref scheme="cpc">F28D5/00</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D3/02" definition-exists="false" ipc-concordant="F28D3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with tubular conduits</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D3/04" definition-exists="false" ipc-concordant="F28D3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Distributing arrangements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D5/00" definition-exists="true" ipc-concordant="F28D5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D5/02" definition-exists="false" ipc-concordant="F28D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the evaporating medium flows in a continuous film or trickles freely over the conduits</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D7/00" definition-exists="true" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/0008" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for one medium being in heat conductive contact with the conduits for the other medium</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/0016" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for one medium or the conduits for both media being bent </text><reference><text><class-ref scheme="cpc">F28D7/0033</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/0025" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/0033" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for one medium or the conduits for both media being bent</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/0041" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for only one medium being tubes having parts touching each other or tubes assembled in panel form </text><reference><text><class-ref scheme="cpc">F28D7/0008</class-ref>, <class-ref scheme="cpc">F28D7/0058</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/005" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration </text><reference><text><class-ref scheme="cpc">F28D7/0008</class-ref>, <class-ref scheme="cpc">F28D7/02</class-ref>, <class-ref scheme="cpc">F28D7/04</class-ref>, <class-ref scheme="cpc">F28D7/06</class-ref>, <class-ref scheme="cpc">F28D7/14</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/0058" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0058</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for only one medium being tubes having different orientations to each other or crossing the conduit for the other heat exchange medium </text><reference><text><class-ref scheme="cpc">F28D7/0008</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/0066" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids </text><reference><text><class-ref scheme="cpc">F28D7/103</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/0075" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/0083" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/0083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/0091" definition-exists="false" ipc-concordant="F28D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>F28D7/0091</classification-symbol><class-title date-revised="2018-01-01"><title-part><CPC-specific-text><text>the supplementary medium flowing in series through the units</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/02" definition-exists="false" ipc-concordant="F28D7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits being helically coiled </text><reference><text><class-ref scheme="cpc">F28D7/10</class-ref> takes precedence </text><CPC-specific-text><text><class-ref scheme="cpc">F28D7/0016</class-ref> and <class-ref scheme="cpc">F28D7/0033</class-ref> take precedence</text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/022" definition-exists="false" ipc-concordant="F28D7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/024" definition-exists="false" ipc-concordant="F28D7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/026" definition-exists="false" ipc-concordant="F28D7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/028" definition-exists="false" ipc-concordant="F28D7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits of at least one medium being helically coiled, the coils having a conical configuration</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/04" definition-exists="false" ipc-concordant="F28D7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits being spirally coiled </text><reference><text><class-ref scheme="cpc">F28D7/10</class-ref> takes precedence</text></reference><CPC-specific-text><reference><text><class-ref scheme="cpc">F28D7/0016</class-ref> and <class-ref scheme="cpc">F28D7/0033</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/06" definition-exists="false" ipc-concordant="F28D7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits having a single U-bend </text><reference><text><class-ref scheme="cpc">F28D7/10</class-ref> takes precedence</text></reference><CPC-specific-text><reference><text><class-ref scheme="cpc">F28D7/0016</class-ref> and <class-ref scheme="cpc">F28D7/0033</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/08" definition-exists="false" ipc-concordant="F28D7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits being otherwise bent, e.g. in a serpentine or zig-zag </text><reference><text><class-ref scheme="cpc">F28D7/10</class-ref> takes precedence</text></reference><CPC-specific-text><reference><text><class-ref scheme="cpc">F28D7/0016</class-ref> and <class-ref scheme="cpc">F28D7/0033</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/082" definition-exists="false" ipc-concordant="F28D7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with serpentine or zig-zag configuration</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/085" definition-exists="false" ipc-concordant="F28D7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the form of parallel conduits coupled by bent portions</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D7/087" definition-exists="false" ipc-concordant="F28D7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>assembled in arrays, each array being arranged in the same plane</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/10" definition-exists="false" ipc-concordant="F28D7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits being arranged one within the other, e.g. concentrically </text><CPC-specific-text><reference><text>multiple wall tubes for leak detection <class-ref scheme="cpc">F28F1/003</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/103" definition-exists="false" ipc-concordant="F28D7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of more than two coaxial conduits or modules of more than two coaxial conduits</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/106" definition-exists="false" ipc-concordant="F28D7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of two coaxial conduits or modules of two coaxial conduits</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/12" definition-exists="false" ipc-concordant="F28D7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the surrounding tube being closed at one end, e.g. return type </text><reference><text><class-ref scheme="cpc">F28D7/14</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/14" definition-exists="false" ipc-concordant="F28D7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>both tubes being bent</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D7/16" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F28D7/16</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>the conduits being arranged in parallel spaced relation </text><reference><CPC-specific-text><text><class-ref scheme="cpc">F28D7/0008</class-ref>&#160;-&#160;<class-ref scheme="cpc">F28D7/0058</class-ref> take precedence</text></CPC-specific-text><text>; <class-ref scheme="cpc">F28D7/02</class-ref> - <class-ref scheme="cpc">F28D7/10</class-ref> take precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/1607" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1607</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow of the heat exchange media, e.g. change of flow direction </text><reference><text><class-ref scheme="cpc">F28D7/1623</class-ref>, <class-ref scheme="cpc">F28D7/1638</class-ref>, <class-ref scheme="cpc">F28D7/1661</class-ref>, <class-ref scheme="cpc">F28D7/1676</class-ref>, <class-ref scheme="cpc">F28D7/1692</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/1615" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1615</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/1623" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1623</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow of the heat exchange media, e.g. change of flow direction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/163" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-01-01" status="published"><classification-symbol>F28D7/163</classification-symbol><class-title date-revised="2018-01-01"><title-part><CPC-specific-text><text>with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing </text><reference><text><class-ref scheme="cpc">F28D7/1615</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/1638" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1638</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow or the heat exchange medium flowing inside the conduits assemblies, e.g. change of flow direction from one conduit assembly to another one </text><reference><text><class-ref scheme="cpc">F28D7/1661</class-ref>, <class-ref scheme="cpc">F28D7/1676</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D7/1646" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1646</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow of the heat exchange medium flowing outside the conduit assemblies, e.g. change of flow direction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/1653" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1653</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduit assemblies having a square or rectangular shape</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D7/1661" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1661</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow of the heat exchange media, e.g. change of flow direction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/1669" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1669</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D7/1676" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1676</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow of the heat exchange media, e.g. change of flow direction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D7/1684" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1684</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a non-circular cross-section</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D7/1692" definition-exists="false" ipc-concordant="F28D7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D7/1692</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular pattern of flow of the heat exchange media, e.g. change of flow direction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D9/00" definition-exists="true" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F28F3/083</class-ref>, <class-ref scheme="cpc">F28F3/086</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0006" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plate-like or laminated conduits being enclosed within a pressure vessel</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0012" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the apparatus having an annular form</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D9/0018" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without any annular circulation of the heat exchange media</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0025" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits being formed by zig-zag bend plates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0031" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0031</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for one heat-exchange medium being formed by paired plates touching each other </text><reference><text><class-ref scheme="cpc">F28D9/0012</class-ref>, <class-ref scheme="cpc">F28D9/0025</class-ref>, <class-ref scheme="cpc">F28D9/0081</class-ref>, <class-ref scheme="cpc">F28D9/04</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D9/0037" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0037</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for the other heat-exchange medium also being formed by paired plates touching each other </text><reference><text><class-ref scheme="cpc">F28D9/0043</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D9/0043" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D9/005" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plates having openings therein for both heat-exchange media</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D9/0056" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0056</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0062" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for one heat-exchange medium being formed by spaced plates with inserted elements </text><reference><text><class-ref scheme="cpc">F28D9/0012</class-ref>, <class-ref scheme="cpc">F28D9/0025</class-ref>, <class-ref scheme="cpc">F28D9/0081</class-ref>, <class-ref scheme="cpc">F28D9/04</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D9/0068" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D9/0075" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the plates having openings therein for circulation of the heat-exchange medium from one conduit to another</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0081" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits for one heat-exchange medium being formed by a single plate-like element </text><reference><text><class-ref scheme="cpc">F28D9/0012</class-ref> takes precedence</text></reference><text>; the conduits for one heat-exchange medium being integrated in one single plate-like element </text><reference><text><class-ref scheme="cpc">F28D9/0012</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0087" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with flexible plates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/0093" definition-exists="false" ipc-concordant="F28D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/0093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/02" definition-exists="false" ipc-concordant="F28D9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-08-01" status="published"><classification-symbol>F28D9/02</classification-symbol><class-title date-revised="2019-08-01"><title-part><text>the heat-exchange media travelling at an angle to one another </text><reference><text><class-ref scheme="cpc">F28D9/04</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D9/04" definition-exists="false" ipc-concordant="F28D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the conduits being formed by spirally-wound plates or laminae</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D11/00" definition-exists="true" ipc-concordant="F28D11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus employing moving conduits </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F28D15/0208</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D11/02" definition-exists="false" ipc-concordant="F28D11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D11/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the movement being rotary, e.g. performed by a drum or roller </text><reference><text><class-ref scheme="cpc">F28D11/08</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D11/025" definition-exists="false" ipc-concordant="F28D11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D11/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Motor car radiators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D11/04" definition-exists="false" ipc-concordant="F28D11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D11/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>performed by a tube or a bundle of tubes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D11/06" definition-exists="false" ipc-concordant="F28D11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the movement being reciprocating or oscillating </text><reference><text><class-ref scheme="cpc">F28D11/08</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D11/08" definition-exists="false" ipc-concordant="F28D11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D11/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>more than one conduit assembly performing independent movements, e.g. rotary bundle of tubes in a rotary drum</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D13/00" definition-exists="true" ipc-concordant="F28D13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus using a fluidised bed</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F28D15/00" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat-exchange apparatus employing intermediate heat-transfer media or bodies</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D15/00" definition-exists="true" ipc-concordant="F28D15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F28D15/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls </text><CPC-specific-text><text>; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies </text><reference><text><class-ref scheme="cpc">F28D17/00</class-ref>, <class-ref scheme="cpc">F28D19/00</class-ref>, <class-ref scheme="cpc">F28D20/00</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D15/02" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F28D15/02</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>in which the medium condenses and evaporates, e.g. heat pipes </text><CPC-specific-text><reference><text>heat pipes used in solar heat collectors <class-ref scheme="cpc">F24S10/95</class-ref>; in radiators <class-ref scheme="cpc">F28D1/0226</class-ref>; in nuclear reactors <class-ref scheme="cpc">G21C15/257</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/0208" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/0208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using moving tubes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D15/0216" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2015/0216</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having particular orientation, e.g. slanted, or being orientation-independent</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D15/0225" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F28D2015/0225</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Microheat pipes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/0233" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/0233</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the conduits having a particular shape, e.g. non-circular cross-section, annular </text><reference><text><class-ref scheme="cpc">F28D15/0241</class-ref>, <class-ref scheme="cpc">F28D15/0266</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/0241" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/0241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tubes being flexible</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/025" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having non-capillary condensate return means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/0258" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/0258</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means to remove contaminants, e.g. getters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/0266" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/0266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers </text><reference><text><class-ref scheme="cpc">F28D15/043</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/0275" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/0275</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/0283" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/0283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for filling or sealing heat pipes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D15/0291" definition-exists="false" ipc-concordant="F28D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2015/0291</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising internal rotor means, e.g. turbine driven by the working fluid</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/04" definition-exists="false" ipc-concordant="F28D15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with tubes having a capillary structure</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D15/043" definition-exists="false" ipc-concordant="F28D15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>forming loops, e.g. capillary pumped loops</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D15/046" definition-exists="false" ipc-concordant="F28D15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the material or the construction of the capillary structure</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D15/06" definition-exists="false" ipc-concordant="F28D15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control arrangements therefor</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D17/00" definition-exists="true" ipc-concordant="F28D17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D17/005" definition-exists="false" ipc-concordant="F28D17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D17/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using granular particles</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D17/02" definition-exists="false" ipc-concordant="F28D17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D17/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using rigid bodies, e.g. of porous material</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D17/023" definition-exists="false" ipc-concordant="F28D17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D17/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D17/026" definition-exists="false" ipc-concordant="F28D17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D17/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bearings; Driving means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D17/04" definition-exists="false" ipc-concordant="F28D17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D17/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Distributing arrangements for the heat-exchange media</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D19/00" definition-exists="true" ipc-concordant="F28D19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F28D15/02</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D19/02" definition-exists="false" ipc-concordant="F28D19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using granular particles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D19/04" definition-exists="false" ipc-concordant="F28D19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using rigid bodies, e.g. mounted on a movable carrier</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D19/041" definition-exists="false" ipc-concordant="F28D19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with axial flow through the intermediate heat-transfer medium</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D19/042" definition-exists="false" ipc-concordant="F28D19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rotors; Assemblies of heat absorbing masses</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D19/044" definition-exists="false" ipc-concordant="F28D19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>shaped in sector form, e.g. with baskets</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D19/045" definition-exists="false" ipc-concordant="F28D19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with radial flow through the intermediate heat-transfer medium</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D19/047" definition-exists="false" ipc-concordant="F28D19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing means</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D19/048" definition-exists="false" ipc-concordant="F28D19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D19/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bearings; Driving means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D20/00" definition-exists="true" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F28D20/00</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>Heat storage plants or apparatus in general</text></title-part><title-part><text>Regenerative heat-exchange apparatus not covered by groups <class-ref scheme="cpc">F28D17/00</class-ref> or <class-ref scheme="cpc">F28D19/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F28D20/0004" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Particular heat storage apparatus</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0008" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat storage material being enclosed in plate-like or laminated elements, e.g. in plates having internal compartments</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0013" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat storage material being enclosed in elements attached to or integral with heat exchange conduits</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0017" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0017</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat storage material being enclosed in porous or cellular or fibrous structures </text><reference><text>phase-change materials <class-ref scheme="cpc">F28D20/023</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0021" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat storage material being enclosed in loose or stacked elements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0026" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat storage material being enclosed in mobile containers for transporting thermal energy</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D20/003" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using thermochemical reactions</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D20/0034" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/0034</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using liquid heat storage material</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D20/0039" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/0039</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with stratification of the heat storage material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D20/0043" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/0043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for long-term heat storage; Underground tanks; Floating reservoirs; Pools; Ponds </text><reference><text><class-ref scheme="cpc">F28D20/0052</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0047" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using molten salts or liquid metals</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D20/0052" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/0052</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using the ground body or aquifers as heat storage medium</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D20/0056" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/0056</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using solid heat storage material </text><reference><text><class-ref scheme="cpc">F28D20/0052</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F28D20/006" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat storage systems not otherwise provided for</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F28D20/0065" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details, e.g. particular heat storage tanks, auxiliary members within tanks</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0069" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0069</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Distributing arrangements;  Fluid deflecting means</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D20/0073" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>movable</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0078" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0078</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat exchanger arrangements</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0082" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple tanks arrangements, e.g. adjacent tanks, tank in tank</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D20/0086" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Partitions</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D20/0091" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0091</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>flexible</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D20/0095" definition-exists="false" ipc-concordant="F28D20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2020/0095</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>movable or floating</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D20/02" definition-exists="false" ipc-concordant="F28D20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using latent heat</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D20/021" definition-exists="false" ipc-concordant="F28D20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F28D20/021</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the latent heat storage material and the heat-exchanging means being enclosed in one container </text><reference><text><class-ref scheme="cpc">F28D20/023</class-ref>&#160;-&#160;<class-ref scheme="cpc">F28D20/028</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D20/023" definition-exists="false" ipc-concordant="F28D20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D20/025" definition-exists="false" ipc-concordant="F28D20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the latent heat storage material being in direct contact with a heat-exchange medium or with another heat storage material </text><reference><text><class-ref scheme="cpc">F28D20/003</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D20/026" definition-exists="false" ipc-concordant="F28D20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with different heat storage materials not coming into direct contact</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D20/028" definition-exists="false" ipc-concordant="F28D20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D20/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control arrangements therefor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F28D21/00" definition-exists="true" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F28D21/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Heat-exchange apparatus not covered by any of the groups <class-ref scheme="cpc">F28D1/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F28D20/00</class-ref></text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph><CPC-specific-note> Particular use of heat exchangers is classified in <class-ref scheme="cpc">F28D21/00</class-ref> and subgroups, whereas additionally the type of the heat exchangers is classified in the groups <class-ref scheme="cpc">F28D1/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F28D20/00</class-ref></CPC-specific-note></note-paragraph></note></notes-and-warnings>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D21/0001" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F28D21/0001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Recuperative heat exchangers</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D21/0003" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat being recuperated from exhaust gases </text><reference><text><class-ref scheme="cpc">F28D21/0014</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D21/0005" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for domestic or space-heating systems</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D21/0007" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Water heaters</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F28D21/0008" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Air heaters</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F28D21/001" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for thermal power plants or industrial processes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D21/0012" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat being recuperated from waste water or from condensates</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F28D21/0014" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0014</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat being recuperated from waste air or from vapors </text><reference><text>for air conditioning <class-ref scheme="cpc">F24F12/001</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D21/0015" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat and mass exchangers, e.g. with permeable walls</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F28D21/0017" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D21/0017</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flooded core heat exchangers </text><reference><text>in large body of fluid <class-ref scheme="cpc">F28D1/0206</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F28D21/0019" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0019</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other heat exchangers for particular applications;  Heat exchange systems not otherwise provided for</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0021" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for aircrafts or cosmonautics </text><reference><text>air-treatment for aircraft <class-ref scheme="cpc">B64D13/00</class-ref>, temperature control of cosmonautic vehicles <class-ref scheme="cpc">B64G1/50</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0022" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for chemical reactors</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0024" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for combustion apparatus, e.g. for boilers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0026" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for combustion engines, e.g. for gas turbines or for Stirling engines </text><reference><text>engine cooling systems <class-ref scheme="cpc">F28D2021/004</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0028" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for cooling heat generating elements, e.g. for cooling electronic components or electric devices </text><reference><text>for cooling semiconductors <class-ref scheme="cpc">H01L23/34</class-ref>, for cooling electric apparatus <class-ref scheme="cpc">H05K7/20</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0029" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat sinks</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0031" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0031</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Radiators for recooling a coolant of cooling systems</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0033" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for cryogenic applications </text><reference><text>air separation <class-ref scheme="cpc">F25J3/04</class-ref>, cold heat exchange systems <class-ref scheme="cpc">F25J1/0262</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0035" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for domestic or space heating, e.g. heating radiators </text><reference><text>for vehicles <class-ref scheme="cpc">F28D2021/0096</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0036" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Radiators for drying, e.g. towel radiators</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0038" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0038</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for drying or dehumidifying gases or vapours </text><reference><text>by refrigeration <class-ref scheme="cpc">B01D53/265</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/004" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for engine or machine cooling systems </text><reference><text>for vehicles <class-ref scheme="cpc">F28D2021/0094</class-ref>; marine radiators <class-ref scheme="cpc">F28D1/022</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0042" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for foodstuffs</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0043" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for fuel cells </text><reference><text>heat exchange in fuel cell <class-ref scheme="cpc">H01M8/04007</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0045" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for granular materials </text><reference><text>fluidised beds <class-ref scheme="cpc">F28D13/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0047" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for hydrogen or other compressed gas storage tanks</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0049" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0049</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for lubricants, e.g. oil coolers </text><reference><text>for vehicles <class-ref scheme="cpc">F28D2021/0089</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/005" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for medical applications </text><reference><text>heating or cooling appliances for medical treatment <class-ref scheme="cpc">A61F7/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0052" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0052</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for mixers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0054" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0054</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for nuclear applications </text><reference><text>cooling arrangements for nuclear reactors <class-ref scheme="cpc">G21C15/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0056" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0056</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for ovens or furnaces </text><reference><text>for boilers <class-ref scheme="cpc">F28D2021/0024</class-ref>, arrangements for using waste heat in furnaces <class-ref scheme="cpc">F27D17/00</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0057" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for melting materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0059" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0059</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for petrochemical plants</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0061" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for phase-change applications </text><reference><text>for refrigerant cycles <class-ref scheme="cpc">F28D2021/0068</class-ref>; heat pipes <class-ref scheme="cpc">F28D15/02</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0063" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Condensers </text><reference><text>steam or vapour condensers <class-ref scheme="cpc">F28B</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0064" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vaporizers, e.g. evaporators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0066" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with combined condensation and evaporation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0068" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for refrigerant cycles</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/007" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-09-01" status="published"><classification-symbol>F28D2021/007</classification-symbol><class-title date-revised="2015-09-01"><title-part><CPC-specific-text><text>Condensers </text><reference><text>for vehicles <class-ref scheme="cpc">F28D2021/0084</class-ref>; for compression systems <class-ref scheme="cpc">F25B39/04</class-ref>, cold exchangers for separating constituents of gaseous mixtures <class-ref scheme="cpc">F25J3/06</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0071" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0071</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Evaporators </text><reference><text>for vehicles <class-ref scheme="cpc">F28D2021/0085</class-ref>, for compression systems <class-ref scheme="cpc">F25B39/02</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0073" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gas coolers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0075" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for syngas or cracked gas cooling systems </text><reference><text>cooling of cracked gas <class-ref scheme="cpc">C10G9/002</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0077" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0077</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for tempering, e.g. with cooling or heating circuits for temperature control of elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0078" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0078</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the form of cooling walls</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/008" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for vehicles </text><reference><text>for aircrafts <class-ref scheme="cpc">F28D2021/0021</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0082" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Charged air coolers </text><reference><text>cooling of air intake supply <class-ref scheme="cpc">F02B29/04</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0084" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Condensers</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0085" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Evaporators</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0087" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fuel coolers </text><reference><text>apparatus for cooling fuel on vehicles <class-ref scheme="cpc">F02M31/20</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0089" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0089</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oil coolers </text><reference><text>heating or cooling lubricants in vehicles <class-ref scheme="cpc">F01M5/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F28D21/0091" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0091</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Radiators</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F28D21/0092" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with particular location on vehicle, e.g. under floor or on roof</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F28D21/0094" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0094</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for recooling the engine coolant </text><reference><text>arrangements of liquid-to-air heat exchangers on vehicles <class-ref scheme="cpc">F01P3/18</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F28D21/0096" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0096</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for space heating </text><reference><text>for air-conditioning in vehicles <class-ref scheme="cpc">B60H1/00321</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F28D21/0098" definition-exists="false" ipc-concordant="F28D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F28D2021/0098</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for viscous or semi-liquid materials, e.g. for processing sludge </text><reference><text>for foodstuffs <class-ref scheme="cpc">F28D2021/0042</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme>