Patents-Review.com
ClassID:

249211 ⎘

Y10T137/7847 - CPC Classification

Classification description:

Fluid handling; Line condition change responsive valves; Direct response valves [i.e., check valve type] With leak passage

Sub-classes:
Recent Application in this class:
#1
20210033213
2021-02-04

System and apparatus for controlling fluid flow in drainage systems

 #2
20190361469
2019-11-28

Hybrid flow and pressure regulation

 #3
20190064856
2019-02-28

Hybrid flow and pressure regulation

 #4
20180372077
2018-12-27

Device for choking a fluid flow and corresponding piston pump for delivering fluids

 #5
20180219200
2018-08-02

Pressure equalising device

 #6
20170121953
2017-05-04

Waterless trap

 #7
20170036897
2017-02-09

Oil return mechanism

 #8
20160327170
2016-11-10

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

 #9
20160131121
2016-05-12

Device for choking a fluid flow and corresponding piston pump for delivering fluids

 #10
20150217906
2015-08-06

Spouted bag body

 #11
20150150383
2015-06-04

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

 #12
20140345706
2014-11-27

Non-return valve

 #13
20140248120
2014-09-04

Bi-metal strip-seal

 #14
20130199626
2013-08-08

Water-saving device structure

 #15
20130178760
2013-07-11

Use of automatic flow regulators for flow modulation during blood collection

 #16
20120318365
2012-12-20

Flow restrictor and method for reducing resistance of a flow

 #17
20120261009
2012-10-18

Hydraulic control device

 #18
20120204985
2012-08-16

Internally dampened pressure relief valve

 #19
20120104299
2012-05-03

Venturi valve pressure compensator apparatus and method

 #20
20110284104
2011-11-24

Automatic flow regulator valve

 #21
20110284086
2011-11-24

Flow restrictor and method for reducing resistance of a flow

 #22
20110253392
2011-10-20

SYSTEM AND METHOD FOR CONTROLLING FLOW IN A WELLBORE

 #23
20100258092
2010-10-14

Fuel overflow valve for a fuel injection system, and fuel injection system having a fuel overflow valve

 #24
20100044609
2010-02-25

Pipe connector

 #25
20100024894
2010-02-04

Fluid circuit breaker quick disconnect coupling

 #26
20090266555
2009-10-29

System and method for controlling flow in a wellbore

 #27
20090151798
2009-06-18

IRRIGATION SYSTEM EMITTER

 #28
20090072173
2009-03-19

Flow control valve

 #29
20090010789
2009-01-08

Fuel pump for internal combustion engine

 #30
20080131297
2008-06-05

Suction throttle valve of a compressor

 #31
20080083463
2008-04-10

Automatic flow control regulator valve

 #32
20080023947
2008-01-31

Apparatus and method for providing extended inflator output

 #33
20070289643
2007-12-20

Device for dynamic control of a water flow

 #34
20070289642
2007-12-20

Device for dynamic control of a water flow

 #35
20070289641
2007-12-20

Thermostatic mixer with device for dynamic regulation of a water flow

 #36
20070044846
2007-03-01

Check valve

 #37
20060289068
2006-12-28

Check valve

 #38
20060118189
2006-06-08

Flow variation valve assembly

 #39
20060021661
2006-02-02

Check valve

 #40
20060011238
2006-01-19

Backflow preventer

 #41
20060005885
2006-01-12

Poppet valve arrangements

 #42
20050268969
2005-12-08

Valve for prevention of low flow rates through flow meter

 #43
20050268967
2005-12-08

Surge suppression and safety cut-off valve

 #44
20050229978
2005-10-20

Check valve with pressure relief feature

 #45
20050207904
2005-09-22

Transporting method and transporting facility for easily polimerizable material

 #46
20050204769
2005-09-22

Flow-rate restrictor insert for orifice expansion device

 #47
20050178445
2005-08-18

Dual restrictor shut-off valve

 #48
20050167523
2005-08-04

Variable flow rate valve and method of reducing wear on same

 #49
20050145284
2005-07-07

Modular umbrella valve

 #50
17194691
2022-05-24

Oxygen generation check valve device

 #51
17166754
2022-10-18

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