ClassID:

142998

F04B39/1013 - 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 -; Adaptations or arrangements of distribution members the members being of the poppet valve type

Recent Application in this class:
#1
20250146483
2025-05-08

RECIPROCATING COMPRESSOR WITH NON-SELF-ACTUATED SUCTION VALVE

#2
20220252059
2022-08-11

IMPROVED RUBBER SEALED PLUNGER ASSEMBLY

#3
20220186720
2022-06-16

COMPRESSOR VALVE ASSEMBLY

#4
20220099081
2022-03-31

Seat valve

#5
20220065358
2022-03-03

POPPET VALVE

#6
20210372389
2021-12-02

Poppet Valve Assembly, System, and Apparatus for Use in High Speed Compressor Applications

#7
20210332902
2021-10-28

Valve poppets and valve seats for high-speed reciprocating compressor capacity unloaders

#8
20210324848
2021-10-21

Air pump with external pressure relief valve

#9
20210262463
2021-08-26

Reciprocating gas compressor valve

#10
20200095988
2020-03-26

Depressurizing device

#11
20200063729
2020-02-27

Poppet valve

#12
20190301446
2019-10-03

Reciprocating gas compressor valve

#13
20190277221
2019-09-12

Thermally compensated bore guide systems and methods

#14
20190195214
2019-06-27

Poppet valve assembly

#15
20190145396
2019-05-16

Valve having a first and second obstruction confining the valve from leaving a confining region

#16
20190078564
2019-03-14

Poppet Valve Assembly, System, and Apparatus for Use in High Speed Compressor Applications

#17
20180363794
2018-12-20

VARIABLE GEOMETRY LIFT VALVE FOR RECIPROCATING COMPRESSORS

#18
20180340540
2018-11-29

Poppet valve

#19
20180340402
2018-11-29

Downhole pump with traveling valve and pilot

#20
20180306176
2018-10-25

Poppet valve

#21
20180298890
2018-10-18

POPPET VALVE

#22
20180298889
2018-10-18

Manual pump

#23
20180291884
2018-10-11

Reciprocating compressor

#24
20180245710
2018-08-30

Valve actuator for an electrically actuated poppet valve including a continuously variable transmission and a power free latching mechanism

#25
20180238313
2018-08-23

Compressor with a discharge muffler

#26
20170314549
2017-11-02

Depressurizing device

#27
20170216762
2017-08-03

Variable conductance gas distribution apparatus and method

#28
20170096884
2017-04-06

Downhole pump with controlled traveling valve

#29
20170037843
2017-02-09

Autolift-resistant piston assembly for an unloader valve of an air compressor

#30
20160305414
2016-10-20

Railway vehicle air compressor with integral high pressure cylinder unloader valve

#31
20160237997
2016-08-18

Miniature pump

#32
20150308424
2015-10-29

Systems and devices including valves coupled to electric devices and methods of making, using, and operating the same

#33
20150308423
2015-10-29

Cylinder apparatus

#34
20150276066
2015-10-01

Apparatus and systems having a reciprocating valve head assembly and swing adsorption processes related thereto

#35
20150204319
2015-07-23

Poppet valve for a compressor

#36
20140377110
2014-12-25

Devices and methods for actuating valves

#37
20140339453
2014-11-20

Compressor valve seat reconditioning limit indicator

#38
20140312257
2014-10-23

Poppet valve with variable dampener and elastically supported guide

#39
20140261790
2014-09-18

Poppet valve with integrated dampener

#40
20140014190
2014-01-16

Differential pressure valve with parallel biasing springs and method for reducing spring surge

#41
20130340619
2013-12-26

Apparatus and systems having a reciprocating valve head assembly and swing adsorption processes related thereto

#42
20130320043
2013-12-05

DOUBLE ACTING VALVE FOR LIQUID PUMPS

#43
20130195703
2013-08-01

Poppet valve assembly

#44
20130177464
2013-07-11

Cylinder assembly for fluid working machine

#45
20130019745
2013-01-24

Poppet valve with an impact damper and method for reducing impact wear in hyper compressors

#46
20130015385
2013-01-17

Poppet valve with integrated dampener

#47
20120042771
2012-02-23

ELECTRONICALLY CONTROLLED VALVE

#48
20110070113
2011-03-24

System and devices including valves coupled to electric devices and methods of making, using, and operating the same

#49
20100090149
2010-04-15

POPPET VALVE ASSEMBLY, SYSTEM, AND APPARATUS FOR USE IN HIGH SPEED COMPRESSOR APPLICATIONS

#50
20100040497
2010-02-18

Poppet valve assembly

#51
20100025601
2010-02-04

Poppet valve with sloped purge holes and method for reducing a pressure force therein

#52
20100008805
2010-01-14

Valve assembly and system

#53
20090289210
2009-11-26

Valve structure

#54
20090179170
2009-07-16

Semispherical Valve for Reciprocating Compressor and Pumps

#55
20090173403
2009-07-09

DUAL LIFT VALVE FOR RECIPROCATING COMPRESSOR AND PUMPS

#56
20090014678
2009-01-15

Elastomeric Sealing Element for Gas Compressor Valve

#57
20080063551
2008-03-13

Head Discharging Compressor System

#58
20070065321
2007-03-22

ELASTOMERIC RECIPROCATING COMPRESSOR VALVE SPRING

#59
17885772
2023-10-31

Portable air pump