ZSI_Reconnect_China/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-E21F.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="E21F" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>E21F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS</text></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="E21F1/00" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ventilation of mines or tunnels</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F1/00" definition-exists="true" ipc-concordant="E21F1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ventilation of mines or tunnels</text></title-part><title-part><text>Distribution of ventilating currents </text><reference><text>ventilating rooms or spaces in general <class-ref scheme="cpc">F24F</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F1/003" definition-exists="true" ipc-concordant="E21F1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F1/003</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Ventilation of traffic tunnels </text><reference><text>during construction <class-ref scheme="cpc">E21F1/04</class-ref>&#160;-&#160;<class-ref scheme="cpc">E21F3/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F1/006" definition-exists="false" ipc-concordant="E21F1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ventilation at the working face of galleries or tunnels</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="E21F1/02" definition-exists="false" ipc-concordant="E21F1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Test models </text><reference><text>analogue computers therefor <class-ref scheme="cpc">G06G7/50</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F1/04" definition-exists="false" ipc-concordant="E21F1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Air ducts </text><reference><text>suspension devices <class-ref scheme="cpc">E21F17/02</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F1/06" definition-exists="false" ipc-concordant="E21F1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Duct connections </text><reference><text>tube connections in general <class-ref scheme="cpc">F16L</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F1/08" definition-exists="true" ipc-concordant="E21F1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators </text><reference><CPC-specific-text><text><class-ref scheme="cpc">E21F1/003</class-ref> takes precedence</text></CPC-specific-text><text>; ventilators in general <class-ref scheme="cpc">F04D</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F1/085" definition-exists="false" ipc-concordant="E21F1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using compressed gas injectors</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="E21F1/10" definition-exists="true" ipc-concordant="E21F1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Air doors </text><reference><CPC-specific-text><text><class-ref scheme="cpc">E21F1/003</class-ref> takes precedence; air locks <class-ref scheme="cpc">E21F1/145</class-ref>; dam doors <class-ref scheme="cpc">E21F17/12</class-ref></text></CPC-specific-text><text>; doors in general <class-ref scheme="cpc">E06B</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F1/12" definition-exists="false" ipc-concordant="E21F1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices for automatically opening air doors</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F1/14" definition-exists="true" ipc-concordant="E21F1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Air partitions</text></title-part><title-part><text>Air locks </text><reference><CPC-specific-text><text><class-ref scheme="cpc">E21F1/003</class-ref> takes precedence</text></CPC-specific-text><text>; dams <class-ref scheme="cpc">E21F17/103</class-ref>; air locks for foundations <class-ref scheme="cpc">E02D</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F1/145" definition-exists="false" ipc-concordant="E21F1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Air locks </text><reference><text>air doors <class-ref scheme="cpc">E21F1/10</class-ref>; dam doors <class-ref scheme="cpc">E21F17/12</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="E21F1/16" definition-exists="true" ipc-concordant="E21F1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaft covers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F1/18" definition-exists="false" ipc-concordant="E21F1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F1/18</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Gravity flow ventilation </text><reference><text><class-ref scheme="cpc">E21F1/02</class-ref>&#160;-&#160;<class-ref scheme="cpc">E21F1/16</class-ref> take precedence</text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F3/00" definition-exists="true" ipc-concordant="E21F3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling or drying of air </text><reference><text>air-conditioning rooms or spaces in general <class-ref scheme="cpc">F24F</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="E21F5/00" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Safety devices </text><reference><text>flue-gas indicators <class-ref scheme="cpc">G01N</class-ref></text></reference></title-part><title-part><text>Rescue devices</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F5/00" definition-exists="true" ipc-concordant="E21F5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means or methods for preventing, binding, depositing, or removing dust </text><CPC-specific-text><reference><text>in combination with mining machines <class-ref scheme="cpc">E21C35/22</class-ref></text></reference></CPC-specific-text></title-part><title-part><text>Preventing explosions or fires </text><reference><text>dams <class-ref scheme="cpc">E21F17/103</class-ref>; applying liquids or other fluent materials to surfaces in general <class-ref scheme="cpc">B05</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F5/02" definition-exists="false" ipc-concordant="E21F5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by wetting or spraying</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F5/04" definition-exists="false" ipc-concordant="E21F5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spraying barriers </text><reference><text>spray nipples, spraying in general <class-ref scheme="cpc">B05B</class-ref>, <class-ref scheme="cpc">B05D</class-ref>; picks with arrangements of fluid-spraying nozzles <class-ref scheme="cpc">E21C35/187</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F5/06" definition-exists="false" ipc-concordant="E21F5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluids used for spraying</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F5/08" definition-exists="true" ipc-concordant="E21F5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rock dusting of mines</text></title-part><title-part><text>Depositing other protective substances</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F5/10" definition-exists="false" ipc-concordant="E21F5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices for rock dusting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F5/12" definition-exists="false" ipc-concordant="E21F5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Composition of rock dust</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F5/14" definition-exists="true" ipc-concordant="E21F5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F5/143" definition-exists="false" ipc-concordant="E21F5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluid barriers</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="E21F5/146" definition-exists="false" ipc-concordant="E21F5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rock dusters</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="E21F5/16" definition-exists="false" ipc-concordant="E21F5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Layers of hygroscopic or other salts deposited on floors, walls, or the like, for binding dust</text></title-part><title-part><text>Deposition of such layers </text><reference><text>dust-absorbing materials in general <class-ref scheme="cpc">C09K3/22</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F5/18" definition-exists="false" ipc-concordant="E21F5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Impregnating walls, or the like, with liquids for binding dust </text><CPC-specific-text><reference><text>injections for improving soil or rock <class-ref scheme="cpc">E21D9/001</class-ref>; borehole closures, i.e. packers, for use during the injection process <class-ref scheme="cpc">E21B33/12</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F5/20" definition-exists="true" ipc-concordant="E21F5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2020-05-01" status="published"><classification-symbol>E21F5/20</classification-symbol><class-title date-revised="2020-05-01"><title-part><text>Drawing-off or depositing dust </text><reference><CPC-specific-text><text>dust-removing while drilling <class-ref scheme="cpc">E21B21/011</class-ref></text></CPC-specific-text><text>; while slitting <class-ref scheme="cpc">E21C35/22</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F7/00" definition-exists="true" ipc-concordant="E21F7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F9/00" definition-exists="true" ipc-concordant="E21F9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices preventing sparking of machines or apparatus </text><reference><text>preventing sparking of electric machines or apparatus <class-ref scheme="cpc">H01K</class-ref>, <class-ref scheme="cpc">H02K</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F11/00" definition-exists="true" ipc-concordant="E21F11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>E21F11/00</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Rescue devices or other safety devices, e.g. safety chambers or escape ways </text><reference><text>breathing aids for curative purposes <class-ref scheme="cpc">A61H31/00</class-ref>; respiratory apparatus <class-ref scheme="cpc">A62B7/00</class-ref>; breathing apparatus for accidentally buried persons <class-ref scheme="cpc">A62B33/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F13/00" definition-exists="true" ipc-concordant="E21F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Transport specially adapted to underground conditions </text><reference><text>mine cars <class-ref scheme="cpc">B61D</class-ref>; transport in general, loading </text><CPC-specific-text><text>unless specially adapted to underground conditions</text></CPC-specific-text><text> <class-ref scheme="cpc">B65G</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F13/002" definition-exists="true" ipc-concordant="E21F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crushing devices specifically for conveying in mines</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="E21F13/004" definition-exists="false" ipc-concordant="E21F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Staff transport system</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="E21F13/006" definition-exists="true" ipc-concordant="E21F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Equipment transport systems</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/008" definition-exists="false" ipc-concordant="E21F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for mine roof support units for step-by-step movement</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F13/02" definition-exists="true" ipc-concordant="E21F13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Transport of mined mineral</text></CPC-specific-text><text> in galleries</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/025" definition-exists="false" ipc-concordant="E21F13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Shuttle cars</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="E21F13/04" definition-exists="false" ipc-concordant="E21F13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Transport of mined material</text></CPC-specific-text><text> in gravity inclines</text></title-part><title-part><text>in staple or inclined shafts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/042" definition-exists="false" ipc-concordant="E21F13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vertical hydraulic conveying of coal </text><reference><text>conveying by water flow in general <class-ref scheme="cpc">B65G53/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/045" definition-exists="false" ipc-concordant="E21F13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bunkers specially adapted for mining purposes </text><reference><text>chutes in general <class-ref scheme="cpc">B65G11/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/047" definition-exists="false" ipc-concordant="E21F13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising helically running channels </text><reference><text>chutes of helical form in general <class-ref scheme="cpc">B65G11/06</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="E21F13/06" definition-exists="false" ipc-concordant="E21F13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Transport of mined material</text></CPC-specific-text><text> at or adjacent to the working face</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/061" definition-exists="false" ipc-concordant="E21F13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F13/061</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Chutes and braking conveyors for average and steep slopes, adapted for mining purposes </text><reference><text>chutes in general <class-ref scheme="cpc">B65G11/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/063" definition-exists="false" ipc-concordant="E21F13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Loading devices for use in mining</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="E21F13/065" definition-exists="false" ipc-concordant="E21F13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Scrapers </text><reference><text>digging devices guided by cables <class-ref scheme="cpc">E02F3/54</class-ref>; combined with planing means <class-ref scheme="cpc">E21C27/42</class-ref></text></reference></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="E21F13/066" definition-exists="false" ipc-concordant="E21F13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F13/066</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Scraper chain conveyors </text><reference><text>in general <class-ref scheme="cpc">B65G19/00</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="E21F13/068" definition-exists="false" ipc-concordant="E21F13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F13/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Special adaptations for use at the junction of the working face with the gallery, e.g. driving stations coupled to the driving station of the winning machine</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="E21F13/08" definition-exists="true" ipc-concordant="E21F13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F13/08</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Shifting conveyors or other transport devices from one location at the working face to another </text><reference><text>guiding mining machines along conveyors for the cut mineral <class-ref scheme="cpc">E21C35/12</class-ref>; in combination with mine roof supports for step-by-step movement <class-ref scheme="cpc">E21D23/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F13/083" definition-exists="false" ipc-concordant="E21F13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F13/083</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Conveyor belts removing methods or devices</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="E21F13/086" definition-exists="false" ipc-concordant="E21F13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F13/086</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Armoured conveyors shifting devices</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="E21F13/10" definition-exists="false" ipc-concordant="E21F13/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F13/10</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Anchorings for conveyors</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F15/00" definition-exists="true" ipc-concordant="E21F15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>E21F15/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Methods or devices for placing filling-up materials in underground workings </text><reference><text>dams <class-ref scheme="cpc">E21F17/103</class-ref>  </text><CPC-specific-text><text>; chocks made of flexible containers filled with backfilling material <class-ref scheme="cpc">E21D15/483</class-ref></text></CPC-specific-text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F15/005" definition-exists="true" ipc-concordant="E21F15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F15/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the kind or composition of the backfilling material</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="E21F15/02" definition-exists="true" ipc-concordant="E21F15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supporting means, e.g. shuttering, for filling-up materials</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F15/04" definition-exists="false" ipc-concordant="E21F15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stowing mats</text></title-part><title-part><text>Goaf wire netting</text></title-part><title-part><text>Partition walls</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F15/06" definition-exists="false" ipc-concordant="E21F15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filling-up mechanically</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F15/08" definition-exists="true" ipc-concordant="E21F15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Filling-up hydraulically or pneumatically </text><reference><text>hydraulic or pneumatic transport devices <class-ref scheme="cpc">B65G</class-ref>; pipes, pipe couplings <class-ref scheme="cpc">F16L</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F15/10" definition-exists="false" ipc-concordant="E21F15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F15/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hydraulic or pneumatic filling-up machines</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="E21F16/00" definition-exists="true" ipc-concordant="E21F16/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F16/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Drainage </text><reference><text>keeping dry foundation sites or other areas in the ground <class-ref scheme="cpc">E02D19/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F16/02" definition-exists="false" ipc-concordant="E21F16/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F16/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of tunnels</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="E21F17/00" definition-exists="true" ipc-concordant="E21F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Methods or devices for use in mines or tunnels, not covered elsewhere </text><reference><text>mine lighting <class-ref scheme="cpc">F21</class-ref>, <class-ref scheme="cpc">H05B</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F17/02" definition-exists="true" ipc-concordant="E21F17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>E21F17/02</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Suspension devices for tubes or the like, e.g. for ventilating ducts </text><reference><text>supporting pipes, cables or protective tubing in general <class-ref scheme="cpc">F16L3/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">F16L7/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F17/04" definition-exists="false" ipc-concordant="E21F17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Distributing means for power supply in mines</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F17/06" definition-exists="false" ipc-concordant="E21F17/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Distributing electric power</text></title-part><title-part><text>Cable networks</text></title-part><title-part><text>Conduits for cables </text><reference><text>circuit arrangements for supplying or distributing electric power in general <class-ref scheme="cpc">H02J</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F17/08" definition-exists="false" ipc-concordant="E21F17/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Distributing hydraulic power</text></title-part><title-part><text>Pipe networks for hydraulic liquid </text><reference><text>pipe-line systems in general <class-ref scheme="cpc">F17D</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F17/10" definition-exists="false" ipc-concordant="E21F17/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Distributing pneumatic power</text></title-part><title-part><text>Pipe networks for compressed air </text><reference><text>pipe-line systems in general <class-ref scheme="cpc">F17D</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F17/103" definition-exists="true" ipc-concordant="E21F17/103" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dams, e.g. for ventilation</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F17/107" definition-exists="false" ipc-concordant="E21F17/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>inflatable</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F17/12" definition-exists="false" ipc-concordant="E21F17/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dam doors </text><CPC-specific-text><reference><text>air doors <class-ref scheme="cpc">E21F1/10</class-ref>; air locks <class-ref scheme="cpc">E21F1/145</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="E21F17/16" definition-exists="true" ipc-concordant="E21F17/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Modification of mine passages or chambers for storage purposes, especially for liquids or gases </text><reference><text>storing fluids in natural or artificial cavities or chambers in the earth <class-ref scheme="cpc">B65G5/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="E21F17/18" definition-exists="false" ipc-concordant="E21F17/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special adaptations of signalling or alarm devices </text><reference><text>for mine lifts <class-ref scheme="cpc">B66B</class-ref>; gas-sensitive devices <u>per se</u> <class-ref scheme="cpc">G01N</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="E21F17/185" definition-exists="false" ipc-concordant="E21F17/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>E21F17/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rock-pressure control devices with or without alarm devices; Alarm devices in case of roof subsidence </text><reference><text>props with load-measuring devices <class-ref scheme="cpc">E21D15/46</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme>