ClassID:

143605

F04C18/3442 - CPC Classification

Classification description:

Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening

Recent Application in this class:
#1
20260132790
2026-05-14

Valve For Rotary Fluid Displacement Assembly And Rotary Fluid Displacement Assembly Comprising Same

#2
20250382960
2025-12-18

VALVE FOR ROTARY FLUID DISPLACEMENT ASSEMBLY AND ROTARY FLUID DISPLACEMENT ASSEMBLY COMPRISING SAME

#3
20230137074
2023-05-04

Vane rotary compressor

#4
20230125736
2023-04-27

Rotary compressor

#5
20230088672
2023-03-23

Rotary compressor having improved vane chattering performance

#6
20210095669
2021-04-01

Hermetic compressor

#7
20210047929
2021-02-18

Vane motor

#8
20190101117
2019-04-04

Vane pump

#9
20180372104
2018-12-27

Compressor having round part placed near outlet port

#10
20180340534
2018-11-29

Rotary compressor with specific suction geometry

#11
20180223844
2018-08-09

Hermetic compressor having a vane with guide portion

#12
20180030833
2018-02-01

GAS COMPRESSOR

#13
20170009768
2017-01-12

Vane pumps with vane wear detection

#14
20160333877
2016-11-17

Gas compressor having block and pressure supply parts communicating with backpressure space

#15
20160208802
2016-07-21

Negative pressure pump and cylinder head cover

#16
20160084252
2016-03-24

Negative pressure pump and cylinder head cover

#17
20140369878
2014-12-18

Gas compressor with discharge section and sub-discharge section

#18
20140322061
2014-10-30

Check valve for an engine vacuum pump

#19
20140199199
2014-07-17

Gas pump with pressure relief for reducing the starting torque

#20
20140190195
2014-07-10

Solar energy air conditioning system with storage capability

#21
20140161645
2014-06-12

Gas pump with a sealing oil groove

#22
20140044583
2014-02-13

Process for manufacturing casing, and vacuum pump

#23
20130251578
2013-09-26

Rotary vacuum pump with a discharge compensating channel

#24
20130064705
2013-03-14

Vane compressor with vane aligners

#25
20120134868
2012-05-31

ROTARY SLIDING-VANE COMPRESSOR

#26
20120076682
2012-03-29

Vane pump having an oil supply passage communicating with a gas passage in the stopping state

#27
20120060683
2012-03-15

VACUUM PUMP WITH VENTILATING MEANS

#28
20120034124
2012-02-09

COMPRESSOR AND KIT REPAIRING AND INFLATING INFLATABLE ARTICLES

#29
20110311385
2011-12-22

Vane pump and vapor leakage check system having the same

#30
20110217200
2011-09-08

Vacuum pump

#31
20110187118
2011-08-04

Generation and use of high pressure air

#32
20110171041
2011-07-14

Vacuum Pump

#33
20110165008
2011-07-07

Device for branching off a fluidic partial flow

#34
20110143311
2011-06-16

Combination vertical rotary vane suction pump and liquid separator

#35
20110064598
2011-03-17

Vane pump with circulating oil supply passage

#36
20110045416
2011-02-24

Compressor and Method for Compressing Gaseous Fuel

#37
20100239440
2010-09-23

Vacuum pump with an axial oil feed conduit

#38
20100218461
2010-09-02

VACUUM STORAGE SYSTEM

#39
20100196187
2010-08-05

Vacuum pump for a motor vehicle engine

#40
20100150766
2010-06-17

Rotary sliding vane compressor and blade therefor

#41
20100034675
2010-02-11

Vacuum pump provided with a device for its deactivation

#42
20090297376
2009-12-03

Rotary vacuum pump with a discharge compensating channel

#43
20090220370
2009-09-03

Gas compressor having a check valve

#44
20090173038
2009-07-09

Device and method for evacuating storage bag

#45
20090169400
2009-07-02

Fan hub integrated vacuum pump system

#46
20090148329
2009-06-11

Vane pump and vapor leakage check system having the same

#47
20090123341
2009-05-14

STEAM STERILIZING SYSTEM

#48
20090035157
2009-02-05

VACUUM PUMP INCORPORATING SAFETY DEVICE AND MANUFACTURING METHOD THEREOF

#49
20090032760
2009-02-05

ROTATIONAL MULTI VANE POSITIVE DISPLACEMENT VALVE FOR USE WITH A SOLAR AIR CONDITIONING SYSTEM

#50
20080236184
2008-10-02

Injectable two-staged rotary compressor and heat pump system

#51
20080232981
2008-09-25

Check Valve for a Vacuum Pump

#52
20080219873
2008-09-11

Vane pump having a labyrinth seal and gap between a top surface of a rotor and a ceiling surface of a rotor chamber that is formed between upper and lower cases

#53
20080219863
2008-09-11

Connector for hermetic compressor and suction device of working fluid using the same

#54
20080219862
2008-09-11

Compressor

#55
20080199342
2008-08-21

Vacuum pump for a vehicle with multiple one-way valves

#56
20080166249
2008-07-10

Rotary compressor and air conditioner having the same

#57
20080159896
2008-07-03

Vane pump

#58
20080145257
2008-06-19

Lubricant-tight vane rotary vacuum pump

#59
20080145252
2008-06-19

Rotary compressor and air conditioner having the same

#60
20080145243
2008-06-19

Vacuum pump with a hood

#61
20080145209
2008-06-19

Lubricant-tight vane rotary vacuum pump

#62
20080101975
2008-05-01

Vane pump

#63
20080044300
2008-02-21

Air pump

#64
20080028730
2008-02-07

Device and Method For Evacuating A Storage Bag

#65
20070217937
2007-09-20

Oilless rotary vane pump having open ends of vane grooves being inclined rearward in the rotation direction

#66
20070166182
2007-07-19

PNEUMATIC TOOL

#67
20060228246
2006-10-12

Vacuum pump

#68
20060228242
2006-10-12

Vacuum pump

#69
20060099102
2006-05-11

Vane pump having vanes slanted relative to rotational axis

#70
20060078451
2006-04-13

Scroll compressor

#71
20060045760
2006-03-02

Compressor assembly with pressure relief valve fittings

#72
20050260082
2005-11-24

Oil-sealed vane rotary vacuum pump

#73
20050123418
2005-06-09

Compact compressors and refrigeration systems

#74
20050106041
2005-05-19

Compressor

#75
17880801
2023-01-31

Rotary compressor