ClassID:

249204

Y10T137/7839 - CPC Classification

Classification description:

Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type]; Plural Dividing and recombining in a single flow path

Sub-classes:
Recent Application in this class:
#1
20230323960
2023-10-12

Control valve

#2
20230243473
2023-08-03

Monolithic pressure regulator

#3
20230243238
2023-08-03

Fluid control system

#4
20230167913
2023-06-01

Watertight check valve

#5
20220316300
2022-10-06

Downhole Fluid Control System

#6
20220074512
2022-03-10

Watertight check valve

#7
20220010886
2022-01-13

Check valve and modulator block including same

#8
20210293340
2021-09-23

Watertight check valve

#9
20210180703
2021-06-17

Control valve

#10
20210071819
2021-03-11

Monolithic pressure regulator

#11
20210025508
2021-01-28

Plate valve and method for operating same

#12
20200263833
2020-08-20

Monolithic pressure regulator

#13
20200263797
2020-08-20

Passive explosion isolation valve with vertically oriented flaps

#14
20200217175
2020-07-09

Downhole fluid control system

#15
20200040884
2020-02-06

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

#16
20200040883
2020-02-06

Piston compressor valve and method for operating a piston compressor valve

#17
20190360604
2019-11-28

Aspirator system pressure relief mechanism

#18
20190346049
2019-11-14

Control valve

#19
20190186645
2019-06-20

Check valves

#20
20190024478
2019-01-24

Downhole fluid control system

#21
20190003604
2019-01-03

Stacked valve assembly

#22
20180306176
2018-10-25

Poppet valve

#23
20180283578
2018-10-04

Bypass check valve and Venturi having same

#24
20180252325
2018-09-06

Systems and methods for a reed valve module and a modular reed valve assembly

#25
20180156171
2018-06-07

Check valves and venturi devices having the same

#26
20180128388
2018-05-10

Check valve

#27
20170234106
2017-08-17

Flow control device

#28
20170204981
2017-07-20

Check valves and flapper arrangements therefor

#29
20170167620
2017-06-15

Check valves

#30
20170167618
2017-06-15

Check valve

#31
20170089301
2017-03-30

Electromagnetically actuatable gas valve, and method for increasing the seal of an electromagnetically actuatable gas valve

#32
20160356250
2016-12-08

Check valves and Venturi devices having the same

#33
20160116918
2016-04-28

Throttle valve

#34
20160040799
2016-02-11

Check valve housing

#35
20160040793
2016-02-11

Check valve with backbone enhanced petals

#36
20160040792
2016-02-11

Check valve flapper

#37
20160010757
2016-01-14

Valve flapper spring stop mechanism

#38
20150285401
2015-10-08

Bypass check valve and venturi devices having the same

#39
20150247590
2015-09-03

Oscillating pressure in a finite volume

#40
20150068612
2015-03-12

Valve with precision mounted hinge pin posts

#41
20140251461
2014-09-11

Check valve having petals with lift generating elements

#42
20140208735
2014-07-31

Inflatable device with recessed fluid controller and self-sealing valve

#43
20140041739
2014-02-13

Dual disk check valve with slotted stop bar

#44
20130340862
2013-12-26

High opening velocity check valve

#45
20130251565
2013-09-26

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

#46
20130019966
2013-01-24

Dual plate check valve

#47
20120298053
2012-11-29

AIR:FLUID DISTRIBUTION SYSTEM AND METHOD

#48
20120241030
2012-09-27

Disc check valve construction

#49
20120227847
2012-09-13

Systems and methods for a reed valve module and valve assembly

#50
20120196236
2012-08-02

Heating system with pressure regulator

#51
20120042968
2012-02-23

Metal plate for dual plate check valve

#52
20120037730
2012-02-16

Variable flow screen nozzle

#53
20110271771
2011-11-10

Adjustable orifice for coal supply conduit

#54
20110209851
2011-09-01

Header for a heat exchanger

#55
20110204268
2011-08-25

Unbalanced inlet fuel tube for a fuel pressure regulator

#56
20110129338
2011-06-02

Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water

#57
20110108147
2011-05-12

Non-return valve, in particular for medical uses

#58
20110083753
2011-04-14

Inflatable device with fluid controller and self-sealing valve

#59
20110083280
2011-04-14

Pneumatic lift with unidirectional valve

#60
20100282340
2010-11-11

Compliant check valve stop

#61
20100269934
2010-10-28

Air:fluid distribution system and method

#62
20100212912
2010-08-26

Method of controlling flow through a drill string using a valve positioned therein

#63
20100119356
2010-05-13

Device for regulating the flow rate of air feeding a turbine ventilation cavity of a turbomachine turbine section

#64
20100096024
2010-04-22

Air valve device

#65
20100092285
2010-04-15

Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water

#66
20100040497
2010-02-18

Poppet valve assembly

#67
20100037615
2010-02-18

Multi-stage check valve

#68
20100025601
2010-02-04

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

#69
20090250928
2009-10-08

Anti-flooding device

#70
20090183781
2009-07-23

Open state maintainable valve device for an inflatable article

#71
20090136366
2009-05-28

Compressor

#72
20090134083
2009-05-28

Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water

#73
20090120513
2009-05-14

Multiple-input gas adjuster

#74
20090071643
2009-03-19

Downhole valve for preventing zonal cross-flow

#75
20090071549
2009-03-19

Flapper with insert stops for check valve

#76
20090050217
2009-02-26

Check valve

#77
20090032261
2009-02-05

Valve

#78
20090032119
2009-02-05

Check valves with hinge shafts retained by welding

#79
20090023378
2009-01-22

Fan damper

#80
20080223459
2008-09-18

Springless compressor valve

#81
20080179051
2008-07-31

Header for a heat exchanger

#82
20080156381
2008-07-03

Compressor valve

#83
20080142303
2008-06-19

Check valve of cylinder head

#84
20080128033
2008-06-05

Check valve with adjustable opening pressure

#85
20080083463
2008-04-10

Automatic flow control regulator valve

#86
20080078459
2008-04-03

Rotary hydraulic damper for check valve

#87
20080078458
2008-04-03

Linear damper for check valve

#88
20080072974
2008-03-27

Engineered composite quiet check valve

#89
20080072973
2008-03-27

Rotary pneumatic damper for check valve

#90
20080060513
2008-03-13

Piston cartridge

#91
20080053537
2008-03-06

Check valve assembly including position indicator and method of operation

#92
20080053536
2008-03-06

High flow insert type check valve

#93
20080047610
2008-02-28

Electromagnetic split flapper pressure relief valve

#94
20080023080
2008-01-31

Check valve stop assembly and method of retention

#95
20070295672
2007-12-27

Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water

#96
20070256740
2007-11-08

Split flapper check valve including a torsion spring wear reduction mechanism

#97
20070215217
2007-09-20

Outlet check valve

#98
20070184772
2007-08-09

Air duct assembly for a vehicle

#99
20070175522
2007-08-02

Check valves of multiple-layer films

#100
20070131285
2007-06-14

Valve means

#101
20070131284
2007-06-14

Montgomery soft stroke one way valve

#102
20070068841
2007-03-29

Deflation valve for compression bag and compression bag equipped with the deflation valve

#103
20060237680
2006-10-26

Butterfly valve with integral split flapper relief valve

#104
20060180208
2006-08-17

Springless compressor valve

#105
20060179800
2006-08-17

Snap acting split flapper valve

#106
20060157119
2006-07-20

Method for winterizing a pool

#107
20060124175
2006-06-15

Reverse flow preventing device and electronic apparatus

#108
20060120632
2006-06-08

Vacuum packaging bags equipped with deflating device and deflating cylinders for use thereof

#109
20060081295
2006-04-20

Flow regulating valve

#110
20060032534
2006-02-16

Fuel tank cap safety valve with splash control and overpressure release

#111
20060026965
2006-02-09

Methods and apparatus for regulating airflow supply systems

#112
20050271992
2005-12-08

Air:fluid distribution system and method

#113
20050257839
2005-11-24

Flow control valve

#114
20050199289
2005-09-15

Flow control valve

#115
20050175494
2005-08-11

Discharge valve mechanism for variable displacement compressor

#116
20050081922
2005-04-21

One-way valve with poppet member

#117
20050081921
2005-04-21

Vehicle pressure relief valve having peripherally secured flaps and method of manufacturing the same

#118
20050072474
2005-04-07

Valve assembly for attenuating bounce of hydraulically driven members of a machine

#119
20050067022
2005-03-31

Sexless coupling for fire hydrant-fire hose connection

#120
20050016595
2005-01-27

Reverse flow preventing device and electronic apparatus