ClassID:

249265

Y10T137/7903 - CPC Classification

Classification description:

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

Recent Application in this class:
#1
20240167575
2024-05-23

BLOCKING VALVE

#2
20230025349
2023-01-26

Eccentric backflow preventer

#3
20210170299
2021-06-10

Pressurized vapor cycle liquid distillation

#4
20210033213
2021-02-04

System and apparatus for controlling fluid flow in drainage systems

#5
20200309277
2020-10-01

Damper valve assembly

#6
20200011439
2020-01-09

Air admittance valve preventing mephitis overflow

#7
20190381420
2019-12-19

Pressurized vapor cycle liquid distillation

#8
20190360604
2019-11-28

Aspirator system pressure relief mechanism

#9
20190186645
2019-06-20

Check valves

#10
20180326837
2018-11-15

Valve assembly

#11
20180180211
2018-06-28

Valve insert

#12
20180128387
2018-05-10

Contoured check valve disc for low cracking pressure

#13
20180038496
2018-02-08

Air admittance valve preventing mephitis overflow

#14
20170152959
2017-06-01

Backwater valve assembly and method

#15
20170107711
2017-04-20

Powerless back-flow prevention apparatus

#16
20160319977
2016-11-03

Valve insert

#17
20160067629
2016-03-10

Pressurized vapor cycle liquid distillation

#18
20150330524
2015-11-19

Composite injection molded check valve with integrated features

#19
20150283882
2015-10-08

Pressure relief assembly

#20
20150247583
2015-09-03

Passive explosion isolation valve with pulse jet cleaning

#21
20140261789
2014-09-18

Backwater valve assembly and method

#22
20140260706
2014-09-18

Yield monitoring system

#23
20140230916
2014-08-21

Anchor valve for security

#24
20140190816
2014-07-10

Pressurized vapor cycle liquid distillation

#25
20140083563
2014-03-27

Back-pressure valve

#26
20140060673
2014-03-06

Valve insert

#27
20130292241
2013-11-07

Pressurized vapor cycle liquid distillation

#28
20130258591
2013-10-03

AIR DAM MODULE AND ELECTRONIC DEVICE HAVING THE SAME

#29
20130258590
2013-10-03

Air dam module and electronic device having the same

#30
20130240051
2013-09-19

Alignment system for flapper valve

#31
20130233412
2013-09-12

Wafer check valve assembly and related methods of use

#32
20130118612
2013-05-16

Clack valve assembly

#33
20130112585
2013-05-09

Valve designed to indicate whether or not fluid is passing

#34
20130037278
2013-02-14

Differential dry pipe valve

#35
20130020520
2013-01-24

Check valve

#36
20120255631
2012-10-11

Check valve

#37
20120241020
2012-09-27

Nozzle check valve

#38
20120160348
2012-06-28

High-temperature jointed assemblies and wear-resistant coating systems therefor

#39
20120152378
2012-06-21

Non-return valve

#40
20110140022
2011-06-16

Valve assemblies including corrugated flowbody and method for the manufacture thereof

#41
20110120575
2011-05-26

Check valve for transport and storage containers for fluids

#42
20110108749
2011-05-12

Dynamic flapper and method

#43
20110079301
2011-04-07

Water flow detection device

#44
20100264011
2010-10-21

Method and device for preparing liquid

#45
20100012198
2010-01-21

Flushing device with removable drain ring for potable water systems

#46
20090183783
2009-07-23

Hydrant shoe with backflow prevention assembly

#47
20090120005
2009-05-14

Drain for a door or window sash or frame

#48
20090116938
2009-05-07

CHECK VALVE AND SUBSTRATE PROCESSING APPARATUS USING SAME

#49
20090000666
2009-01-01

Anchor valve for security

#50
20080196775
2008-08-21

Valve flap for a plumbing valve

#51
20080128026
2008-06-05

Dry pipe valve for fire protection sprinkler system

#52
20080110502
2008-05-15

Faucet with water temperature retaining feature

#53
20080105610
2008-05-08

Pressurized vapor cycle liquid distillation

#54
20080105533
2008-05-08

Pressurized vapor cycle liquid distillation

#55
20080105530
2008-05-08

Pressurized vapor cycle liquid distillation

#56
20080105403
2008-05-08

Pressurized vapor cycle liquid distillation

#57
20080083464
2008-04-10

Check valve for vacuum sewage pipe and vacuum sewage system

#58
20070295406
2007-12-27

Hydrant shoe with backflow prevention assembly

#59
20070272308
2007-11-29

Check Valve With Oblong Hinge Openings

#60
20070240772
2007-10-18

In-line, one-way valve assembly

#61
20070237664
2007-10-11

Backflow preventing apparatus for compressor

#62
20070119202
2007-05-31

Ice discharging structure of ice making mechanism

#63
20070068579
2007-03-29

Non-return valve

#64
20070051411
2007-03-08

Check valve

#65
20070044847
2007-03-01

Connecting structure for a check valve

#66
20070017793
2007-01-25

Method and device for preparing liquid

#67
20060124175
2006-06-15

Reverse flow preventing device and electronic apparatus

#68
20060102233
2006-05-18

Check valve

#69
20060096763
2006-05-11

Dry pipe valve for fire protection sprinkler system

#70
20050284522
2005-12-29

Transducer for monitoring the position of a movable body

#71
20050247349
2005-11-10

Low pressure check valve

#72
20050229978
2005-10-20

Check valve with pressure relief feature

#73
20050194048
2005-09-08

Backpressure regulator

#74
20050139266
2005-06-30

Full-opening compact swing check valve

#75
20050067026
2005-03-31

Check valve position detector

#76
20050016828
2005-01-27

Pressurized vapor cycle liquid distillation

#77
20050016595
2005-01-27

Reverse flow preventing device and electronic apparatus

#78
17166754
2022-10-18

System and apparatus for controlling fluid flow in drainage systems with a cage device

#79
14526735
2018-07-31

Aligned-outlet and distal-flushable blow case

#80
14252210
2016-08-02

Sewage stopper systems