ClassID:

143841

F04C2240/811 - CPC Classification

Classification description:

Components; Other components Actuator for control, e.g. pneumatic, hydraulic, electric

Recent Application in this class:
#1
20260132789
2026-05-14

SCROLL PUMP AND SCROLL PUMP INLET VALVE

#2
20260043403
2026-02-12

ROTARY VANE PUMP WITH ANGULAR POSITION SENSING CAPABILITY

#3
20250154953
2025-05-15

PUMPS

#4
20240392780
2024-11-28

VARIABLE DISPLACEMENT PUMP SYSTEMS

#5
20240280100
2024-08-22

Pump with a deformable diaphragm

#6
20230096852
2023-03-30

Fuel pump with determinant translating cam arrangement

#7
20210277893
2021-09-09

System to pump fluid and control thereof

#8
20210115921
2021-04-22

Fixed Displacement Pump For Use For Conveying A Hydraulic Fluid In A Closed Hydraulic Circuit, Closed Hydraulic Circuit, Construction Machine And Method For Operating A Fixed Displacement Pump In A Closed Hydraulic Circuit

#9
20200232464
2020-07-23

Variable-capacity control structure, compressor and variable-capacity control method thereof

#10
20200088196
2020-03-19

Method and apparatus for pressure equalization in rotary compressors

#11
20190186491
2019-06-20

Variable volume ratio compressor

#12
20190120227
2019-04-25

Two-stage variable-displacement oil pump

#13
20190093657
2019-03-28

Suction side slide valve for a screw compressor

#14
20180347564
2018-12-06

Controlled variable delivery external gear machine

#15
20180291895
2018-10-11

System to pump fluid and control thereof

#16
20180223840
2018-08-09

Variable capacity oil pump

#17
20180180047
2018-06-28

Method and apparatus for pressure equalization in rotary compressors

#18
20180180045
2018-06-28

Pump and system for supplying a consumer

#19
20180010604
2018-01-11

Eccentric Screw Pump And Method For Adapting The Operating State Of An Eccentric Screw Pump

#20
20170328363
2017-11-16

Pump with control system including a control system for directing delivery of pressurized lubricant

#21
20170248356
2017-08-31

High pressure compressor and refrigerating machine having a high pressure compressor

#22
20160319814
2016-11-03

COMPRESSOR

#23
20160273539
2016-09-22

Claw pump

#24
20160186752
2016-06-30

Variable displacement vane pump with integrated fail safe function

#25
20160169228
2016-06-16

Scroll compressor having capacity varying valves

#26
20150377098
2015-12-31

Control device for oil pump

#27
20150354280
2015-12-10

Progressive cavity based control system

#28
20150226216
2015-08-13

Variable displacement transmission pump and controller with adaptive control

#29
20150218983
2015-08-06

Variable-capacity oil pump and oil supply system using same

#30
20150132169
2015-05-14

Positive displacement pump having axial movement coupling and rotational decoupling

#31
20150078944
2015-03-19

Variable displacement vane pump

#32
20130343940
2013-12-26

Hydraulic feed device and hydraulic system

#33
20130276889
2013-10-24

Methods for restricting backflow of solids in a pump assembly

#34
20130025959
2013-01-31

Solenoid valve, solenoid and hydraulic power system

#35
20120199361
2012-08-09

SYSTEM AND METHOD FOR CONTROLLING LIQUID REMOVAL OPERATIONS IN A GAS-PRODUCING WELL

#36
20110005744
2011-01-13

Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations

#37
20100319908
2010-12-23

Flow control system for removing liquid from a well

#38
20100319905
2010-12-23

System and method for controlling liquid removal operations in a gas-producing well

#39
20090050312
2009-02-26

Flow control system having a downhole check valve selectively operable from a surface of a well

#40
20090032263
2009-02-05

Flow control system utilizing an isolation device positioned uphole of a liquid removal device

#41
20090032262
2009-02-05

Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations

#42
20090032245
2009-02-05

Flow control system having a downhole rotatable valve

#43
20090032244
2009-02-05

Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations

#44
20090032242
2009-02-05

System and method for controlling liquid removal operations in a gas-producing well

#45
20080286118
2008-11-20

Capacity modulated scroll compressor system and method