Patents-Review.com
ClassID:

142995 ⎘

F04B39/08 - CPC Classification

Classification description:

Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups - Actuation of distribution members

Recent Application in this class:
#1
20250297602
2025-09-25

DEVICE FOR PROVIDING HYDROGEN

 #2
20250101972
2025-03-27

COMPRESSOR

 #3
20250059965
2025-02-20

RECIPROCATING COMPRESSOR

 #4
20240287976
2024-08-29

FLUID SYSTEM WITH A PROPPANT MIXING PUMP

 #5
20240175432
2024-05-30

Anti-pinch handle for air pump

 #6
20240060486
2024-02-22

Providing backpressure for electric compressor

 #7
20240042400
2024-02-08

Kitchen appliance apparatus

 #8
20230272789
2023-08-31

PROCESS FOR INTERNALLY COOLING AN INLINE COMPRESSOR

 #9
20230141987
2023-05-11

AIR SUPPLY DEVICE

 #10
20230079573
2023-03-16

Subsea pumping apparatuses and related methods

 #11
20220397109
2022-12-15

Discharge valve arrangement for a refrigerant compressor

 #12
20220341410
2022-10-27

Air stop sheet of piston of cylinder

 #13
20220170451
2022-06-02

Pump-valve integrated machine for pneumatic lumbar support of automobile seat

 #14
20220065241
2022-03-03

Discharge cut-off valve

 #15
20220056904
2022-02-24

Fully actuated valve for a reciprocating machine and reciprocating machine including said valve

 #16
20210372388
2021-12-02

Internally cooled inline drive compressor

 #17
20210301799
2021-09-30

Leveraged Compressor

 #18
20210190061
2021-06-24

Electromagnetic actuator

 #19
20210180588
2021-06-17

Reciprocating compressor-expander

 #20
20200386216
2020-12-10

COOLANT COMPRESSOR

 #21
20200355177
2020-11-12

Pressure adjustment apparatus and method

 #22
20200224647
2020-07-16

Precise control of suction damping device in a variable displacement compressor

 #23
20200166036
2020-05-28

Method and device for expanding a gas with a reciprocating-piston machine

 #24
20200158098
2020-05-21

Electric pump device

 #25
20200124041
2020-04-23

Minimum pressure valve and compressor comprising such a minimum pressure valve

 #26
20200095988
2020-03-26

Depressurizing device

 #27
20200040884
2020-02-06

Valve closure for a piston compressor valve and method for operating the valve closure

 #28
20200040883
2020-02-06

Piston compressor valve and method for operating a piston compressor valve

 #29
20200003204
2020-01-02

Compressor gas cutoff

 #30
20190390664
2019-12-26

Reciprocating compressor valve body made by additive manufacturing

 #31
20190376498
2019-12-12

Micro high-pressure air compressor

 #32
20190368482
2019-12-05

Reciprocating compressor

 #33
20190309746
2019-10-10

Linear compressor

 #34
20190309743
2019-10-10

Linear compressor

 #35
20190277221
2019-09-12

Thermally compensated bore guide systems and methods

 #36
20190234399
2019-08-01

Modular multi-channel syringe pump

 #37
20190234389
2019-08-01

Fluid Cylinder

 #38
20190219045
2019-07-18

Distributor head for a suction pump

 #39
20190170128
2019-06-06

Precise control of suction damping device in a variable displacement compressor

 #40
20190154023
2019-05-23

Hydraulic-powered air compressor

 #41
20190128247
2019-05-02

System and Method for a Reciprocating Injection Pump

 #42
20190040855
2019-02-07

Compressor having an energy saving apparatus, and method for relieving the compressor

 #43
20190032650
2019-01-31

Apparatus and method for gas compression

 #44
20190017498
2019-01-17

Piston Compressor with a Closing Device for the Outlet Line

 #45
20180372087
2018-12-27

Piston Compressor Having a Venting Device

 #46
20180340521
2018-11-29

Vacuum pumping device, vacuum pump, and vacuum valve

 #47
20180274530
2018-09-27

Method for actuating semi-commanded valve and system for actuating semi-commanded valve for multi-suction alternative compressor

 #48
20180238322
2018-08-23

Compressor gas cutoff

 #49
20180230991
2018-08-16

Improper opening detection method of multiple suction reciprocating compressor suction valve

 #50
20180230984
2018-08-16

Internally cooled inline drive compressor

 #51
20180223817
2018-08-09

Reciprocating Pump Having a Combination Check Valve and Relief Valve

 #52
20180187793
2018-07-05

Displacement control valve

 #53
20180172177
2018-06-21

Hydraulic drive for executing a linear movement

 #54
20180171993
2018-06-21

Reciprocating Compressor Provided with Suction Valves Arrangement

 #55
20180163881
2018-06-14

Valve for a reciprocating compressor

 #56
20180106513
2018-04-19

Electric motor for compressor, compressor, and refrigeration cycle device

 #57
20180051685
2018-02-22

COMPRESSOR WITH A DISCHARGE VALVE

 #58
20180031138
2018-02-01

Flow control actuator for reciprocating compressors

 #59
20180011012
2018-01-11

Method for dispensing a product from a container

 #60
20170363074
2017-12-21

Variable displacement compressor

 #61
20170314549
2017-11-02

Depressurizing device

 #62
20170248132
2017-08-31

Air compressor

 #63
20170096996
2017-04-06

Intake Valve Actuating System, Compressors Starting Method and Its Uses

 #64
20160369787
2016-12-22

Over-center linkage

 #65
20160354794
2016-12-08

Method for dispensing a product from a container

 #66
20160305414
2016-10-20

Railway vehicle air compressor with integral high pressure cylinder unloader valve

 #67
20160238000
2016-08-18

Air inlet control for air compressor

 #68
20160186734
2016-06-30

ONE TURN ACTUATED DURATION SPRAY PUMP MECHANISM

 #69
20160177938
2016-06-23

Method of control of compressors with more than two capacity states

 #70
20160090971
2016-03-31

Control circuits for electrochemical pump with E-valves

 #71
20160069340
2016-03-10

DUAL-CHAMBER DUAL-ACTION AIR PUMP AND GLASS-WIPING ROBOT HAVING THE AIR PUMP

 #72
20160032917
2016-02-04

Device for conserving power in a piston compressor

 #73
20160023339
2016-01-28

High pressure water pump

 #74
20160017875
2016-01-21

Linear compressor

 #75
20160003238
2016-01-07

Operational status checking system of alternative compressor valve and method for checking operational status of alternative compressor valve

 #76
20160003233
2016-01-07

Method for actuating semi-commanded valve and system for actuating semi-commanded valve for multi-suction alternative compressor

 #77
20160000999
2016-01-07

Internal cam metering pump

 #78
20150376996
2015-12-31

Anti-gas lock valve for a reciprocating downhole pump

 #79
20150322937
2015-11-12

OIL-FREE COMPRESSOR CRANKCASE COOLING ARRANGEMENT

 #80
20150308423
2015-10-29

Cylinder apparatus

 #81
20150285237
2015-10-08

Air compressor

 #82
20150275929
2015-10-01

Pump device and hydraulic actuator

 #83
20150275881
2015-10-01

One turn actuated duration spray pump mechanism

 #84
20150239309
2015-08-27

Tire inflation apparatus

 #85
20150231656
2015-08-20

Pump suction/expulsion for liquids and gases versatile

 #86
20150139835
2015-05-21

Unloader for a valve element of a compressor valve

 #87
20150118084
2015-04-30

Automatic depressurizing pump

 #88
20150104328
2015-04-16

Subsea pumping apparatuses and related methods

 #89
20150086401
2015-03-26

RETROFIT OF A RECIPROCATING COMPRESSOR WITH A CONCENTRIC VALVE AND A VALVE CLAMP HAVING AN INLET PORT IN A TOP COVER OF THE CLAMP

 #90
20150044080
2015-02-12

Reciprocating compressor having capacity regulation

 #91
20140377111
2014-12-25

Translo-rotating actuated rotary valves for reciprocating compressors and related methods

 #92
20140377110
2014-12-25

Devices and methods for actuating valves

 #93
20140377082
2014-12-25

Semi-commanded valve system applied to compressor and method for modulating the capacity of a compressor provided with a semi-commanded valve system

 #94
20140294619
2014-10-02

Electronic infinite step controller actuator

 #95
20140271255
2014-09-18

Pressure adjustment apparatus and method

 #96
20140261722
2014-09-18

Auxiliary mobile power system

 #97
20140161654
2014-06-12

Pump, in particular pneumatic pump

 #98
20140134022
2014-05-15

Cylinder head for a piston compressor

 #99
20130323099
2013-12-05

Synthetic jet equipment

 #100
20130259719
2013-10-03

Air compressor having mechanical govenor with engine speed relief

 #101
20130160641
2013-06-27

Valves with valve closing member attached to the actuated counter-seat and related methods

 #102
20130139535
2013-06-06

Control for compressor unloading system

 #103
20130064690
2013-03-14

Unloader system and method for a compressor

 #104
20130017102
2013-01-17

Over-center linkage

 #105
20120260796
2012-10-18

Reciprocating piston compressor with delivery rate control

 #106
20120207623
2012-08-16

Method for Controlling Delivery Quantity, and Reciprocating Compressor Having Delivery Quantity Control

 #107
20120192583
2012-08-02

Suction Cutoff Unloader Valve For Compressor Capacity Control

 #108
20120189467
2012-07-26

Method for Controlling Delivery Quantity, and Reciprocating Compressor Having Delivery Quantity Control

 #109
20120152379
2012-06-21

Suction valve with unloader

 #110
20120107159
2012-05-03

Bypass unloader valve for compressor capacity control

 #111
20110311382
2011-12-22

Valve actuation system for a suction valve of a gas compressor for refrigeration equipment

 #112
20110277625
2011-11-17

Piston air compressor

 #113
20100329894
2010-12-30

System and method for control of devices internal to a hermetic compressor

 #114
20100247359
2010-09-30

Actively controlled valve and method for operating an actively controlled valve

 #115
20100189581
2010-07-29

Unloader system and method for a compressor

 #116
20100166584
2010-07-01

High pressure pump

 #117
20100092311
2010-04-15

DISPLACEMENT CONTROL VALVE FOR VARIABLE DISPLACEMENT COMPRESSOR

 #118
20100032029
2010-02-11

Radial flow oscillating valve for reciprocating compressors and pumps

 #119
20090274569
2009-11-05

Piston compressor

 #120
20090274493
2009-11-05

Air discharging apparatus and image forming apparatus

 #121
20090238699
2009-09-24

Control valve assembly for a compressor unloader

 #122
20090064961
2009-03-12

Reciprocating piston cylinder head cover having an integrated fluid exchange rotary disc valve

 #123
20090014678
2009-01-15

Elastomeric Sealing Element for Gas Compressor Valve

 #124
20080149195
2008-06-26

Suction valve with unloader

 #125
20080008604
2008-01-10

HIGH-FREQUENCY CONTROL OF DEVICES INTERNAL TO A HERMETIC COMPRESSOR

 #126
20070272890
2007-11-29

Electromagnetic actuators

 #127
20070272178
2007-11-29

Semi-active compressor valve

 #128
20070253838
2007-11-01

Air compressor unloader system

 #129
20070154335
2007-07-05

Air compressor unit inlet control method

 #130
20070074768
2007-04-05

One-way fluid valve

 #131
20070065302
2007-03-22

System and method for operating a compressor

 #132
20050196291
2005-09-08

Piston compressor

 #133
20050058552
2005-03-17

Valving for multi-stage vacuum pumps

 #134
17314138
2022-07-12

Gas operated unloader valve