Patents-Review.com
ClassID:

249279 ⎘

Y10T137/7922 - CPC Classification

Classification description:

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

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

SPRING CONTROLLING VALVE

 #2
20230407864
2023-12-21

SPRING CONTROLLING VALVE

 #3
20230250822
2023-08-10

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

 #4
20230058099
2023-02-23

Automatic draining back flow prevention device

 #5
20210310223
2021-10-07

Automatic draining back flow prevention device

 #6
20190316333
2019-10-17

Automatic draining back flow prevention device

 #7
20180172175
2018-06-21

Valve assembly with vent port between supply port and control port

 #8
20170284600
2017-10-05

ENVIRONMENTAL COMPRESSOR PROTECTION ASSEMBLY

 #9
20170253116
2017-09-07

VALVE ASSEMBLY FOR A TANK OF A VEHICLE AND A METHOD OF CREATING A VACUUM IN THE TANK

 #10
20170081833
2017-03-23

Automatic draining back flow prevention device

 #11
20170016546
2017-01-19

Safety device for installation in a gas-supply system, in particular, an acetylene-supply system

 #12
20160303497
2016-10-20

Fluid filter and relief valve assembly

 #13
20160153613
2016-06-02

Environmental compressor protection assembly

 #14
20160017875
2016-01-21

Linear compressor

 #15
20160002898
2016-01-07

Automatic draining back flow prevention device

 #16
20150362416
2015-12-17

Portable brinell hardness tester with stented through bore pumping chamber

 #17
20150346732
2015-12-03

Adjustable passive flow regulator

 #18
20150345651
2015-12-03

Method and apparatus for beverage extraction with improved gas cylinder access

 #19
20150330530
2015-11-19

Bypass valve

 #20
20150322743
2015-11-12

Self-regulating surplussing check valve

 #21
20150285389
2015-10-08

Cryogenic check valve

 #22
20150267825
2015-09-24

Safety gas valve capable to attain a blocking condition when subjected to a flow in excess of its nominal working conditions

 #23
20150219233
2015-08-06

Valve for fire protection

 #24
20150203204
2015-07-23

Compact check valve for aircraft galley plumbing system

 #25
20150184765
2015-07-02

Valve unit with axial pressure medium unit

 #26
20150167539
2015-06-18

Shuttle valve assembly and method for intercooler condensation removal

 #27
20150167426
2015-06-18

Flow control device and flow control method

 #28
20150122353
2015-05-07

Check valve and pumping system

 #29
20150096625
2015-04-09

Valve assembly for a tank of a vehicle and a method of creating a vacuum in the tank

 #30
20150059882
2015-03-05

Assembly

 #31
20150059711
2015-03-05

Flow control valve and vapor fuel processing apparatus having the same

 #32
20150034179
2015-02-05

Flow control system and control valve having closure assistance

 #33
20150027568
2015-01-29

Air purging pressure regulating valve

 #34
20150000771
2015-01-01

Tube coupling device

 #35
20140367415
2014-12-18

Method and apparatus for beverage extraction with improved gas cylinder access

 #36
20140318642
2014-10-30

Safety device for installation in a gas-supply system, in particular, an acetylene-supply system

 #37
20140251465
2014-09-11

Tip-resistant valve plugs

 #38
20140251463
2014-09-11

Pilot valve with mechanical valve actuator

 #39
20140202563
2014-07-24

Automatic draining back flow prevention device

 #40
20140182716
2014-07-03

Flow control valves

 #41
20140116387
2014-05-01

Pressure relief valve for common rail fuel system

 #42
20140096848
2014-04-10

Pressure relief valve

 #43
20140069530
2014-03-13

Check valve

 #44
20130312851
2013-11-28

Low profile valves

 #45
20130299012
2013-11-14

Oil pressure regulator

 #46
20130276919
2013-10-24

Residual pressure valve

 #47
20130248021
2013-09-26

Actuator for an adjustable damper-valve device

 #48
20130236354
2013-09-12

Constricting pressure valve apparatus and methods thereof

 #49
20130233417
2013-09-12

Hydraulic torrent control valve

 #50
20130228241
2013-09-05

Check valve system for managing fluids

 #51
20130199635
2013-08-08

Pressure release valve

 #52
20130160875
2013-06-27

Plug valve with bowing rigid arms

 #53
20130104997
2013-05-02

Method and system for controlling fluid flow from a storage tank through a supply line to an end user

 #54
20130087222
2013-04-11

Flow control valves

 #55
20130074493
2013-03-28

Ejector with check valve

 #56
20130061958
2013-03-14

Pressure control valve

 #57
20130056098
2013-03-07

Compact fuel pressure regulator

 #58
20130048124
2013-02-28

Medical valve

 #59
20130047698
2013-02-28

Portable Brinell hardness tester

 #60
20130008513
2013-01-10

Flow control device and flow control method

 #61
20120325332
2012-12-27

Automatic draining back flow prevention device

 #62
20120266980
2012-10-25

In-line back pressure fluid regulators

 #63
20120255632
2012-10-11

Pressure regulator with slide-mount lobes

 #64
20120241031
2012-09-27

Non-return valve and filter arrangement

 #65
20120241030
2012-09-27

Disc check valve construction

 #66
20120216885
2012-08-30

Spring mounting cradle and valve guide for overpressure relief valve assembly

 #67
20120205122
2012-08-16

Flow control device and methods for using same

 #68
20120174995
2012-07-12

Low Pressure / High Flow Back Pressure Device and System

 #69
20120160347
2012-06-28

Device for burst pipe safety

 #70
20120125455
2012-05-24

Gas flow monitor

 #71
20120090705
2012-04-19

GAS PRESSURE REGULATOR SYSTEM

 #72
20120085426
2012-04-12

Rapid response self-closing pressure equalization vent

 #73
20120073681
2012-03-29

Heating and release valve assembly for a fluid receptacle

 #74
20120048402
2012-03-01

CONSTANT PRESSURE VALVE USED IN A HIGH PRESSURE CYLINDER

 #75
20120042969
2012-02-23

Tip-resistant valve plugs

 #76
20120012194
2012-01-19

Double check back flow prevention device

 #77
20120006740
2012-01-12

FILTER ASSEMBLY WITH REUSABLE BYPASS VALVE

 #78
20120006636
2012-01-12

Pressure actuating valve for impact dispersal device

 #79
20120006429
2012-01-12

Safety valve

 #80
20110315242
2011-12-29

Fuel pressure controller

 #81
20110297255
2011-12-08

Hydraulic torrent control valve

 #82
20110284105
2011-11-24

Valve set

 #83
20110283939
2011-11-24

Non-intrusive, low chatter pressure relief valve system

 #84
20110247706
2011-10-13

Valve device

 #85
20110240148
2011-10-06

Valve with a delta P-function and flow limiting function

 #86
20110220215
2011-09-15

HYDRO-GENERATOR SOFT START

 #87
20110219528
2011-09-15

Cartridge unit and trap for sewer gas and odor containment

 #88
20110217157
2011-09-08

Control valve with radial seals

 #89
20110211974
2011-09-01

Curved pliant film valves

 #90
20110203683
2011-08-25

Regulator for corrosive gas tapping in under-atmospheric conditions

 #91
20110186153
2011-08-04

METERING SYSTEM FOR A LIQUID MEDIUM, PARTICULARLY A UREA-WATER SOLUTION

 #92
20110186152
2011-08-04

Compact Flow-Through Fuel Pressure Regulator

 #93
20110180164
2011-07-28

Pressure relief valve with a poppet valve seal

 #94
20110174397
2011-07-21

Pressure control valve

 #95
20110168277
2011-07-14

PRESSURE RELIEF VALVE WITH REVERSE THREADED INLET

 #96
20110139273
2011-06-16

Exhaust check valve of swash plate compressor

 #97
20110138573
2011-06-16

Air pressure inner circulation-type automatic compensation control door closer

 #98
20110127458
2011-06-02

By-pass valve for heat exchanger

 #99
20110114341
2011-05-19

INTEGRATED FIRE FIGHTING VALVE AND SYSTEM

 #100
20110114204
2011-05-19

Control valve

 #101
20110100471
2011-05-05

Drill string valve and method

 #102
20110094476
2011-04-28

Pressure relief valve

 #103
20110076171
2011-03-31

Suction valve of variable capacity compressor for vehicle

 #104
20110048554
2011-03-03

SPRAYER PRESSURE RELIEF VALVE

 #105
20110042282
2011-02-24

Pressure-controlled liquid supply system and pump control device for use therein

 #106
20110036423
2011-02-17

Relief Valve Device

 #107
20110023983
2011-02-03

GAS FLOW MONITOR

 #108
20100327652
2010-12-30

Check valve and brake hydraulic pressure control device using the same

 #109
20100319792
2010-12-23

Flush control valve core assembly

 #110
20100313967
2010-12-16

Slurry flow control device

 #111
20100294972
2010-11-25

One-way valve of variable capacity compressor for vehicle

 #112
20100282332
2010-11-11

High-Pressure Fluid Safety Valve

 #113
20100263738
2010-10-21

Pressure Equalization Assembly for a Liquid Storage Vessel

 #114
20100201051
2010-08-12

Bleeder valve for pressurized furnace

 #115
20100175757
2010-07-15

WATER DELIVERY DEVICES

 #116
20100171053
2010-07-08

TAP ADAPTORS

 #117
20100163764
2010-07-01

IMPROVEMENTS IN OR RELATING TO WATER DELIVERY DEVICES

 #118
20100158704
2010-06-24

Compliant-seal check valve

 #119
20100139789
2010-06-10

RELIEF VALVE WITH FLUID OUTLET

 #120
20100132816
2010-06-03

CHECK VALVE FOR A HYDRAULIC POWER-ASSISTED STEERING SYSTEM

 #121
20100116364
2010-05-13

BACKFLOW PREVENTION DEVICE

 #122
20100104456
2010-04-29

Hydro-pneumatic system with pressure limiting valve

 #123
20100059130
2010-03-11

Directional control valve device and directional control valve device block having directional control valve devices

 #124
20100012202
2010-01-21

Gas flow monitor

 #125
20100012201
2010-01-21

LNG collection system and method

 #126
20100004080
2010-01-07

PRESSURE RELIEF VALVE FOR A HYDRAULIC TENSIONER

 #127
20100000918
2010-01-07

Two piece non-metallic relief valve

 #128
20090320939
2009-12-31

Check Valve

 #129
20090320938
2009-12-31

Safety valve

 #130
20090320937
2009-12-31

Pressurizing and pressure regulating valve and fuel supply system employing the same

 #131
20090301567
2009-12-10

Method and apparatus for dampening pressure fluctuations in a fluid delivery system

 #132
20090288722
2009-11-26

Double check back flow prevention device

 #133
20090250124
2009-10-08

Pressure regulator

 #134
20090235994
2009-09-24

COAXIAL PRESSURE RETENTION AND RELIEF MECHANISM

 #135
20090229679
2009-09-17

Vented steamer port cap assembly

 #136
20090217989
2009-09-03

Pressure relief device

 #137
20090211578
2009-08-27

Inhaler valve

 #138
20090199916
2009-08-13

By-pass valve for heat exchanger

 #139
20090145497
2009-06-11

CHECK VALVE

 #140
20090126807
2009-05-21

VALVE, IN PARTICULAR FOR COMPRESSORS

 #141
20090120748
2009-05-14

Variable valve for impact dispersal device

 #142
20090044872
2009-02-19

Control device and hydraulic pilot control

 #143
20080283131
2008-11-20

Priming valve device for water circuit of a beverage machine

 #144
20080257427
2008-10-23

Service regulator with improved boost performance

 #145
20080210313
2008-09-04

Pressure limiting valve with reduced differential area

 #146
20080023079
2008-01-31

Valve for Use in a Fuel Line of a Motor Vehicle

 #147
20080018101
2008-01-24

RETURN LINE CONNECTOR

 #148
20080011364
2008-01-17

Sprayer tank cap with incorporated pressure relief valve

 #149
20080011363
2008-01-17

Pressure Control Valve

 #150
20070289644
2007-12-20

Pressure regulator

 #151
20070067920
2007-03-29

Spray fill device and method for using the same

 #152
20070056636
2007-03-15

Spring actuated check valve

 #153
20070017580
2007-01-25

Pressure regulator

 #154
20070017579
2007-01-25

Reset relief valve

 #155
20070005000
2007-01-04

Apparatus and method for adjusting a locking mechanism of a shunt valve

 #156
20060196554
2006-09-07

Pressure regulator

 #157
20060150619
2006-07-13

Exhaust passage control valve

 #158
20060108435
2006-05-25

By-pass valve for heat exchanger

 #159
20060048822
2006-03-09

Pressure regulator

 #160
20050274403
2005-12-15

Steam cleaner with safety device

 #161
20050109500
2005-05-26

Well downhole liquid dispenser

 #162
20050005973
2005-01-13

Pressure regulator for a fuel supply system of an internal combustion engine

 #163
17891731
2023-09-19

Spring controlling valve

 #164
15132539
2016-08-30

Modular check valve system

 #165
14067876
2016-01-26

Safety relief valve