ClassID:

249285

Y10T137/7929 - CPC Classification

Classification description:

Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type]; Reciprocating valves; Spring biased Spring coaxial with valve

Sub-classes:
Recent Application in this class:
#1
20260146601
2026-05-28

SPRING CONTROLLING VALVE

#2
20260078831
2026-03-19

CHECK VALVE

#3
20250297688
2025-09-25

HYDRAULIC FLUID RELEASE VALVE ASSEMBLIES

#4
20240376990
2024-11-14

PRESSURE RELIEF VALVE

#5
20240360911
2024-10-31

CHECK VALVE

#6
20240142011
2024-05-02

Valve apparatus

#7
20240084905
2024-03-14

SYSTEMS AND METHODS FOR PISTON CHECK VALVES

#8
20230407864
2023-12-21

SPRING CONTROLLING VALVE

#9
20230349477
2023-11-02

Pressure relief valve

#10
20230271119
2023-08-31

Bypass valve with variable filter

#11
20230250822
2023-08-10

Compressor with a suction valve having a spring, a seal, and a cylindrical suction valve body

#12
20230243430
2023-08-03

Flow control valve

#13
20230219022
2023-07-13

Bypass valve with variable filter

#14
20230151898
2023-05-18

Check valve

#15
20220325811
2022-10-13

PRV-pressure relief valve

#16
20220307568
2022-09-29

Fluid-damped valve

#17
20220282797
2022-09-08

Systems and methods for piston check valves

#18
20220260166
2022-08-18

Adjustable valve

#19
20220252172
2022-08-11

Hydraulic pressure relief valve with integrated calibration mechanism

#20
20220145997
2022-05-12

Flow control valve

#21
20200386337
2020-12-10

Valve of a hydraulic circuit with constant pressure drop

#22
20200271235
2020-08-27

Pressure reducing valve

#23
20200248827
2020-08-06

Pressure relief valve

#24
20190353261
2019-11-21

Jump valve

#25
20190316696
2019-10-17

Damped check valve having multi-pressure operation

#26
20190219195
2019-07-18

Split micro-valve

#27
20190024730
2019-01-24

Clutch regulator for vehicle

#28
20180347716
2018-12-06

Check valve

#29
20180328329
2018-11-15

Relief valve device and high-pressure pump using same

#30
20180209557
2018-07-26

Check valve

#31
20180111071
2018-04-26

Fluid flow controller and filter assembly with fluid flow controller

#32
20170159834
2017-06-08

Check valve

#33
20170152851
2017-06-01

Systems and methods utilizing a grooveless fluid end for high pressure pumping

#34
20170031371
2017-02-02

Dynamic variable orifice

#35
20160239028
2016-08-18

Apparatus to interface with a corrugated diaphragm

#36
20160238173
2016-08-18

Quick connect fluid coupling with integrated check valve

#37
20160017808
2016-01-21

Compact dosing device for an injector with two fuel circuits for an aircraft turbomachine

#38
20150375722
2015-12-31

Valve of a piston pump having a two-part closing body

#39
20150247582
2015-09-03

Apparatus to interface with a corrugated diaphragm

#40
20150238885
2015-08-27

Fluid flow controller and filter assembly with fluid flow controller

#41
20150211500
2015-07-30

Check valve for compressor

#42
20150198213
2015-07-16

Bi-directional hydraulic flow control valve

#43
20150107702
2015-04-23

Safety valve for cryogenic insulated gas cylinder

#44
20150083242
2015-03-26

Relief valve

#45
20150059883
2015-03-05

Pressure-reducing valve

#46
20140346384
2014-11-27

Positioning device for pressure regulator

#47
20140290758
2014-10-02

Pressure reducing valve

#48
20140251465
2014-09-11

Tip-resistant valve plugs

#49
20140147315
2014-05-29

Piston pump for delivering fluids, and associated vehicle brake system

#50
20140007955
2014-01-09

Captured check ball valve cartridge

#51
20130333361
2013-12-19

Coking resistant after-treatment dosing value

#52
20130174922
2013-07-11

Pressure valve

#53
20130025712
2013-01-31

Pipe break valve device

#54
20130019967
2013-01-24

MECHANICAL FUNCTION CONTROL OF CONTINUOUSLY VARIABLE TRANSMISSION HYDRAULIC SYSTEM

#55
20130014838
2013-01-17

Relief device for oil pump

#56
20120273055
2012-11-01

ANNULAR RELIEF VALVE

#57
20120234420
2012-09-20

Steam supply system and check valve for use therein

#58
20120168005
2012-07-05

Pressure retention valve

#59
20120042969
2012-02-23

Tip-resistant valve plugs

#60
20120018013
2012-01-26

Apparatus and methods to dispense fluid from a bank of containers and to refill same

#61
20120018012
2012-01-26

Apparatus and methods to dispense fluid from a bank of containers and to refill same

#62
20120006636
2012-01-12

Pressure actuating valve for impact dispersal device

#63
20110272044
2011-11-10

Multi-mode pressure relief valve

#64
20110217157
2011-09-08

Control valve with radial seals

#65
20110206548
2011-08-25

Compressor including valve assembly

#66
20110197978
2011-08-18

Assembling a check valve having a seal

#67
20110180164
2011-07-28

Pressure relief valve with a poppet valve seal

#68
20110146815
2011-06-23

FLUID VALVE ARRANGEMENT

#69
20110127458
2011-06-02

By-pass valve for heat exchanger

#70
20110126924
2011-06-02

SUCTION CHECK VALVE OF AIR-CON COMPRESSOR OF VEHICLE

#71
20110100471
2011-05-05

Drill string valve and method

#72
20110091340
2011-04-21

RECIPROCATING PUMP AND CHECK VALVE

#73
20110089359
2011-04-21

Spring retaining sleeve

#74
20110076171
2011-03-31

Suction valve of variable capacity compressor for vehicle

#75
20110062156
2011-03-17

Tank Valve Assemblies and Methods

#76
20110033289
2011-02-10

Bypass-type motor protecting device for a vacuum cleaner

#77
20110028251
2011-02-03

Mechanical function control of continuously variable transmission hydraulic system

#78
20110005618
2011-01-13

Check valve

#79
20100283338
2010-11-11

Oil filter bypass valve assembly for a generator

#80
20100276014
2010-11-04

Multiple preset indexing pressure relief valve

#81
20100251896
2010-10-07

Gas chromatography check valve and system

#82
20100243940
2010-09-30

Relief valve

#83
20100219364
2010-09-02

Minimum pressure valve

#84
20100140526
2010-06-10

High pressure water pump valve and seal structure

#85
20100119395
2010-05-13

Valve assembly for fuel pump

#86
20100101668
2010-04-29

Check Valve

#87
20100072409
2010-03-25

Reclosable vacuum-tight pressure-relief device having a deformable seal member

#88
20100051120
2010-03-04

Fluid flow control members for use with valves

#89
20100051119
2010-03-04

Pressure relief valve

#90
20100024891
2010-02-04

Poppet valve with diverging-converging flow passage and method to reduce total pressure loss

#91
20100012197
2010-01-21

AUTOMATIC WATER DIVERTER

#92
20090272444
2009-11-05

Vacuum regulator having selectable adjustment ranges

#93
20090266441
2009-10-29

Board storage container and check valve

#94
20090223577
2009-09-10

Remanufactured machine component and remanufacturing process

#95
20090223576
2009-09-10

Check valve

#96
20090199916
2009-08-13

By-pass valve for heat exchanger

#97
20090173403
2009-07-09

DUAL LIFT VALVE FOR RECIPROCATING COMPRESSOR AND PUMPS

#98
20090120748
2009-05-14

Variable valve for impact dispersal device

#99
20090045199
2009-02-19

Clutch oil reservoir cap

#100
20090038693
2009-02-12

Combination relief valve and injection fitting

#101
20090020171
2009-01-22

Cartridge with Internal Spring

#102
20090014073
2009-01-15

Pressure-regulating valve with an integrated pressure gauge

#103
20090005200
2009-01-01

Mechanical function control of continuously variable transmission hydraulic system

#104
20080309070
2008-12-18

Smartcoupling—non responsive

#105
20080308581
2008-12-18

Pressure control device for maintaining a constant predetermined pressure in a container

#106
20080276997
2008-11-13

Low rise rate direct acting relief valve

#107
20080271794
2008-11-06

Automated mechanical constant flow valve for air ducts

#108
20080223318
2008-09-18

Cooling sprayer with valve

#109
20080210898
2008-09-04

One-piece spring and poppet incorporated into a valve seat assembly and associated method for manufacturing a one-piece spring and poppet

#110
20080210310
2008-09-04

Sanitary installation part

#111
20080206078
2008-08-28

Electric pump unit and electric oil pump apparatus

#112
20080203118
2008-08-28

Pressure reducing and regulating valve comprising a tapping mechanism for a pressure cartridge that can be attached underneath a receptacle cover

#113
20080190988
2008-08-14

Fastener driving apparatus

#114
20080190492
2008-08-14

Outlet Fitting for a High-Pressure Pump

#115
20080190404
2008-08-14

Internal combustion engine having exhaust gas recirculation

#116
20080185055
2008-08-07

Soffit vent

#117
20080185054
2008-08-07

Method for making a safety valve of a boiler of a device for making a hot beverage, particularly coffee, and safety valve

#118
20080149671
2008-06-26

Sprayer including pressure build-up discharge valve assembly with poppet valve having integrated spring

#119
20080149103
2008-06-26

Fluid flow control valve

#120
20080078460
2008-04-03

Positioning device for pressure regulator

#121
20080042092
2008-02-21

Valve

#122
20080017257
2008-01-24

Safety relief valve having a low blow-down value and spring therefore

#123
20080011365
2008-01-17

Selectively actuated constant flow valve

#124
20070295410
2007-12-27

Discharge valve and valve assembly of reciprocating compressor having the same

#125
20070289643
2007-12-20

Device for dynamic control of a water flow

#126
20070215209
2007-09-20

Apparatus and methods to dispense fluid from a bank of containers and to refill same

#127
20070144592
2007-06-28

Fluid flow control valve

#128
20070137711
2007-06-21

Valve

#129
20070113904
2007-05-24

High-pressure fuel pump

#130
20070068739
2007-03-29

Lubricator for equipment exposed to pressure

#131
20070067920
2007-03-29

Spray fill device and method for using the same

#132
20070062586
2007-03-22

Oil flow control valve for a cam phaser

#133
20070039652
2007-02-22

Rotating bonded valve assembly

#134
20070034263
2007-02-15

Valve, especially a gas safety valve

#135
20060289070
2006-12-28

Explusion valve assembly

#136
20060289069
2006-12-28

Latched valve assembly

#137
20060289068
2006-12-28

Check valve

#138
20060280621
2006-12-14

Reciprocating pump and check valve

#139
20060260693
2006-11-23

High impact discharge valve

#140
20060237070
2006-10-26

Plug incorporating pressure-sensitive valve

#141
20060201551
2006-09-14

Breathable fire hydrant rod

#142
20060196557
2006-09-07

Valve connector

#143
20060196555
2006-09-07

Control stop

#144
20060196553
2006-09-07

Non-return valve

#145
20060185738
2006-08-24

Valve connector

#146
20060159570
2006-07-20

Rotary compressor having a discharge valve

#147
20060120889
2006-06-08

Discharge valve for compressor

#148
20060118751
2006-06-08

Diaphargm valve and open close element for said valve

#149
20060112995
2006-06-01

Check valve for pump of electronically controlled brake system

#150
20060108435
2006-05-25

By-pass valve for heat exchanger

#151
20060108002
2006-05-25

Fire hydrant with second valve

#152
20060102235
2006-05-18

Integratable sanitary part

#153
20060090796
2006-05-04

Safety relief valve having a low blow-down value and spring therefore

#154
20060060252
2006-03-23

Fluid flow control valve

#155
20060037646
2006-02-23

Pressure limiting valve

#156
20060021660
2006-02-02

Fluid flow control valve

#157
20050268969
2005-12-08

Valve for prevention of low flow rates through flow meter

#158
20050263191
2005-12-01

Check valve with locked restraint mechanism

#159
20050217731
2005-10-06

Safety valve unit

#160
20050211308
2005-09-29

Pressure limiting valve in a hydraulic machine having a pressure limiting valve

#161
20050205135
2005-09-22

Check valve

#162
20050199291
2005-09-15

Radial poppet-type check valve with closure assist feature

#163
20050199290
2005-09-15

Gas safety device

#164
20050173005
2005-08-11

Pressure relief valve with direct hydraulic damping

#165
20050115616
2005-06-02

Check valve

#166
20050115609
2005-06-02

Fire hydrant with a second valve

#167
20050103385
2005-05-19

Valve body for backflow prevention valve

#168
20050100453
2005-05-12

Reciprocating pump and check valve

#169
20050098216
2005-05-12

Adjustable variable flow fertilizer valve

#170
20050097880
2005-05-12

Valve with swirling coolant

#171
20050067025
2005-03-31

Safety valve for pressurized tanks, and a tank provided with said valve

#172
20050061267
2005-03-24

Check valve for diesel engine

#173
20050039806
2005-02-24

Pressure release valve

#174
20050037885
2005-02-17

Limited slip differential with integrated solenoid valve and plenum

#175
20050034757
2005-02-17

Freeze protection device for wall hydrants/faucets

#176
18752783
2025-11-11

Ceramic balancing check valve

#177
17891731
2023-09-19

Spring controlling valve

#178
16997631
2022-07-12

Composite valve seat system and method

#179
16917083
2022-06-07

Valve seat insert system and method

#180
16746519
2020-09-15

Composite valve seat system and method

#181
15132539
2016-08-30

Modular check valve system