ClassID:

249580

Y10T137/88054 - CPC Classification

Classification description:

Fluid handling; Systems; Flow path with serial valves and/or closures Direct response normally closed valve limits direction of flow

Recent Application in this class:
#1
20230250894
2023-08-10

Gas pressure balance valve, gas pressure balance method, and load locking chamber

#2
20230058099
2023-02-23

Automatic draining back flow prevention device

#3
20210310223
2021-10-07

Automatic draining back flow prevention device

#4
20210301932
2021-09-30

Flow control valve apparatus

#5
20200208749
2020-07-02

Pressure relief valve assembly

#6
20200011450
2020-01-09

Aviation valve with status indicator

#7
20190316333
2019-10-17

Automatic draining back flow prevention device

#8
20190257470
2019-08-22

Check valve

#9
20190086014
2019-03-21

Circuit breaker and handling facility for pressurized fluid comprising such a circuit breaker

#10
20180369719
2018-12-27

Device for collecting air accumulated in pipe

#11
20170336023
2017-11-23

Check valve

#12
20170081833
2017-03-23

Automatic draining back flow prevention device

#13
20170009901
2017-01-12

Valve assembly having improved rotational feel

#14
20170009899
2017-01-12

Flow limiting device with a back flow prevention

#15
20160327170
2016-11-10

Inflation valve allowing for rapid inflation and deflation of an inflatable object

#16
20160097486
2016-04-07

Check valve

#17
20160054193
2016-02-25

Drainage apparatus

#18
20160002898
2016-01-07

Automatic draining back flow prevention device

#19
20150323087
2015-11-12

System, method and apparatus for combined ball segment valve and check valve

#20
20150240962
2015-08-27

Dual plate backflow and breakaway check valve

#21
20150240463
2015-08-27

Arrangement for handling a liquid medium

#22
20150198277
2015-07-16

Aseptic connector for a free-flowing food

#23
20150198258
2015-07-16

Control valve

#24
20150184757
2015-07-02

Valve assembly having improved rotational feel

#25
20150150383
2015-06-04

Inflation valve allowing for rapid inflation and deflation of an inflatable object

#26
20150129066
2015-05-14

Control valve for a camshaft adjuster

#27
20150107708
2015-04-23

Combination flow control valve and reverse flow check valve

#28
20150107681
2015-04-23

Method and apparatus for compressing gas in a plurality of stages to a storage tank array having a plurality of storage tanks

#29
20150027571
2015-01-29

Fluid control valve device

#30
20150013802
2015-01-15

Pressure control valve with control element

#31
20150013801
2015-01-15

Pressure control valve

#32
20140374125
2014-12-25

Flow control assembly for a fire sprinkler system

#33
20140357069
2014-12-04

Aluminum dopant compositions, delivery package and method of use

#34
20140345617
2014-11-27

Passive gas regulating valve for a respiratory system

#35
20140230916
2014-08-21

Anchor valve for security

#36
20140202563
2014-07-24

Automatic draining back flow prevention device

#37
20140197346
2014-07-17

Safety discharge valve

#38
20140182724
2014-07-03

Shut-off trim including spring loaded check valve

#39
20140182723
2014-07-03

Shut-off trim including spring loaded check valve

#40
20140174576
2014-06-26

Shut-off trim including spring loaded check valve

#41
20140048160
2014-02-20

Rinse valve for vacuum waste system

#42
20130160869
2013-06-27

Fuel tank vent valve assembly and method of assembly

#43
20130075634
2013-03-28

Solenoid valve having flow control function

#44
20130056103
2013-03-07

Valve array

#45
20130043419
2013-02-21

Valve assembly having improved connections

#46
20130042925
2013-02-21

Valve assembly having improved rotational feel

#47
20130008537
2013-01-10

Valve apparatus with positive and negative pressure relief valves

#48
20120325332
2012-12-27

Automatic draining back flow prevention device

#49
20120273074
2012-11-01

Flow control device

#50
20120138170
2012-06-07

Shut-off trim including spring loaded check valve

#51
20120085427
2012-04-12

Outlet valve for a frost-preventing faucet

#52
20120012210
2012-01-19

Multi-functional concealed shower valve

#53
20120012194
2012-01-19

Double check back flow prevention device

#54
20110284103
2011-11-24

Accessing a valve assembly of a turbomachine

#55
20110233444
2011-09-29

Valve

#56
20110226357
2011-09-22

Flush valve anti-backflow cartridge

#57
20110203670
2011-08-25

Continuous fluid circulation valve for well drilling

#58
20110120575
2011-05-26

Check valve for transport and storage containers for fluids

#59
20110114865
2011-05-19

Unfreeze faucet structure

#60
20110048561
2011-03-03

Zero-pitch pipe

#61
20110011477
2011-01-20

Flow discharge device

#62
20100326531
2010-12-30

Combination flow control valve and reverse flow check valve

#63
20100208859
2010-08-19

DEGASSING VALVE AND CHECK VALVE COMBINATION

#64
20100170585
2010-07-08

Ball valve

#65
20100163775
2010-07-01

Valve sealant fitting

#66
20100132821
2010-06-03

Self-draining frost-free faucet

#67
20100084592
2010-04-08

Rinse valve for vacuum waste system

#68
20100071805
2010-03-25

REFUELING ASSEMBLY HAVING A CHECK VALVE RECEPTACLE AND A REPLACEABLE FUEL RECEIVER FOR BOTTOM-FILLED FUEL TANKS

#69
20100050612
2010-03-04

Procedure and device for the increase in value of one dose arrangement

#70
20100032027
2010-02-11

Backflow preventer

#71
20100024824
2010-02-04

Passive gas regulating valve for a respiratory system

#72
20100018583
2010-01-28

Device for metering fluids

#73
20090288722
2009-11-26

Double check back flow prevention device

#74
20090283706
2009-11-19

Damping valve for a hydraulic shock absorber

#75
20090278349
2009-11-12

Tube connector

#76
20090272549
2009-11-05

Dry valve for sprinkler system

#77
20090261122
2009-10-22

System for failsafe controlled dispensing of liquid material

#78
20090250527
2009-10-08

System for failsafe controlled dispensing of liquid material

#79
20090242044
2009-10-01

Pressure regulators for beverage dispensers

#80
20090242039
2009-10-01

Ball valve cartridge for use with remote handle

#81
20090189108
2009-07-30

Valve assembly having an improved flow path

#82
20090183783
2009-07-23

Hydrant shoe with backflow prevention assembly

#83
20090165863
2009-07-02

Fluid pressure regulator with no-drain valve

#84
20090159829
2009-06-25

Control valve for a camshaft adjuster

#85
20090146094
2009-06-11

Valve device assembling structure, plug body, and manual valve

#86
20090145496
2009-06-11

Non-return valve with a ball-shaped valve body

#87
20090126799
2009-05-21

Compact beverage pressure regulator

#88
20090101218
2009-04-23

Valve means

#89
20090101215
2009-04-23

Compressed air regulator apparatus situated in canister and method for regulating compressed air thereof

#90
20090000675
2009-01-01

Combined relief valve and check valve

#91
20090000666
2009-01-01

Anchor valve for security

#92
20080314462
2008-12-25

Pressure Regulator

#93
20080272146
2008-11-06

Portable liquid-dispensing bag

#94
20080230131
2008-09-25

Irrigation system and shut-off control device therefor

#95
20080210210
2008-09-04

Compressed air regulator apparatus situated in canister and method for regulating compressed air thereof

#96
20080149202
2008-06-26

Image forming apparatus

#97
20080149103
2008-06-26

Fluid flow control valve

#98
20080135100
2008-06-12

Retrofitting a fire hydrant with a replacement hydrant body containing a secondary valve

#99
20080131740
2008-06-05

Fuel cartridge coupling valve

#100
20080087340
2008-04-17

PRIMARY/SECONDARY LOOP PURGE VALVE

#101
20080083466
2008-04-10

Control valve assembly for a faucet

#102
20080083458
2008-04-10

Wet barrel fire hydrant system with second valve

#103
20080078634
2008-04-03

Adjustable damping valve with a fail-safe damping force characteristic

#104
20070295406
2007-12-27

Hydrant shoe with backflow prevention assembly

#105
20070267593
2007-11-22

Flow path control valve

#106
20070256743
2007-11-08

Method and apparatus for a pressure regulator

#107
20070231621
2007-10-04

Fuel cartridge coupling valve

#108
20070215220
2007-09-20

System for direct transfer of gas from a supply source to a portable cylinder and method for same

#109
20070209719
2007-09-13

Combination valve

#110
20070169824
2007-07-26

Backflow preventing device for solenoid valve

#111
20070144592
2007-06-28

Fluid flow control valve

#112
20070102540
2007-05-10

System for failsafe controlled dispensing of liquid material

#113
20070062603
2007-03-22

Refueling assembly having a check valve receptacle and a replaceable fuel receiver for bottom-filled fuel tanks

#114
20070062586
2007-03-22

Oil flow control valve for a cam phaser

#115
20070044854
2007-03-01

PNEUMATIC CONTROLLER FOR COMPRESSED-AIR GUN

#116
20070000547
2007-01-04

Mixing valve

#117
20060287791
2006-12-21

Semi-active suspension system with anti-roll for a vehicle

#118
20060196562
2006-09-07

Valves for fuel cartridges

#119
20060196561
2006-09-07

Wall hydrant having backflow preventor

#120
20060157124
2006-07-20

Frost free valve assembly

#121
20060108010
2006-05-25

Simple diverter valve for a roman tub with replaceable cartridge including at least two checks

#122
20060108002
2006-05-25

Fire hydrant with second valve

#123
20060081804
2006-04-20

Non-refillable valve

#124
20060065316
2006-03-30

Non-return valve

#125
20060060252
2006-03-23

Fluid flow control valve

#126
20060055495
2006-03-16

Planar transformer

#127
20060042687
2006-03-02

Vacuum feed system for liquid chemical feeding

#128
20060021994
2006-02-02

Fluid-storing container

#129
20060021660
2006-02-02

Fluid flow control valve

#130
20050223885
2005-10-13

Controlled-flow hydraulic distributor

#131
20050205821
2005-09-22

Tap having a clamping ring on the base end portion

#132
20050199296
2005-09-15

Valve adapter

#133
20050126645
2005-06-16

Frost free valve assembly

#134
20050126644
2005-06-16

Recreational vehicle valve and connector assembly for rinsing a sewer hose

#135
20050115609
2005-06-02

Fire hydrant with a second valve

#136
20050109404
2005-05-26

Water re-circulation valve

#137
20050082501
2005-04-21

Non-refillable valve

#138
20050045440
2005-03-03

Shock absorber with frequency-dependent damping

#139
20050034757
2005-02-17

Freeze protection device for wall hydrants/faucets

#140
20050022882
2005-02-03

Frost free valve assembly

#141
15869028
2019-05-21

Touchless tap handle for beverage dispensing

#142
15487488
2018-03-27

Touchless tap handle for beverage dispensing