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Class Information
Number: 137/528
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Reciprocating valves
Description: Valves in which the movable member of the valve moves substantially rectilinearly between its extreme positions. Ball valves are included although their motion may not be strictly rectilinear.










Sub-classes under this class:

Class Number Class Name Patents
137/530 Cam means for adjusting and fixing bias 31
137/529 Plural biasing means 167
137/535 Spring biased 72
137/531 Varying effective lever arm 8
137/532 Weight biased 12


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8689824 Disc check valve construction Apr. 8, 2014
8662105 Suction valve with unloader Mar. 4, 2014
8556133 Valve and dispenser Oct. 15, 2013
8415066 Pressure regulating valve, fuel cell system using same, and hydrogen generating facility Apr. 9, 2013
8403052 Flow control screen assembly having remotely disabled reverse flow control capability Mar. 26, 2013
8365753 Fluid flow controller Feb. 5, 2013
8307847 Ejector valve with glands Nov. 13, 2012
8267116 Strainer and anti-backflow device for compressors Sep. 18, 2012
8171954 Reclosable vacuum-tight pressure-relief device having a deformable seal member May. 8, 2012
8157243 Insert molded evacuation valve Apr. 17, 2012
8153320 Pressure regulating valve, fuel cell system using same, and hydrogen generating facility Apr. 10, 2012
7955301 Injection shut off valve with pressure actuator for delivery of compositions Jun. 7, 2011
7857360 Snap-in-place valved coupler Dec. 28, 2010
7836694 Air bearing turbo cooling air flow regulating device Nov. 23, 2010
7370668 Valve for winterizing a pool May. 13, 2008
7296592 Composite polymer microfluidic control device Nov. 20, 2007
7291006 Check valve lip seal for an injection molding machine Nov. 6, 2007
7121291 Check valve, auxiliary circulating device and method for driving the auxiliary circulating device Oct. 17, 2006
7093612 Self-sealing one-piece vacuum fitting for bagging of composite materials Aug. 22, 2006
7032608 Microfluidic check-valve embedded in LCP Apr. 25, 2006
7028709 One-way valve with poppet member Apr. 18, 2006
6978799 Emergency pressure relief valve with enhanced reset Dec. 27, 2005
6959722 Device for adjusting the degree of vacuum in an apparatus for collecting substances by suction Nov. 1, 2005
6935364 Magnetically-operated relief valves Aug. 30, 2005
6877524 Valve for winterizing a pool Apr. 12, 2005
6834671 Check valve for micro electro mechanical structure devices Dec. 28, 2004
6746222 Bottom discharge valve Jun. 8, 2004
6681796 Drainage valve pipe tap assembly Jan. 27, 2004
6619316 Check valve having adjustable lift, packing assembly, and retrofit kit for same Sep. 16, 2003
6591864 Pressure release valve Jul. 15, 2003
6428292 Discharge valve Aug. 6, 2002
6171084 Discharge valve Jan. 9, 2001
6116274 Sight glass with check valve and filter Sep. 12, 2000
6102682 Slidable discharge valve in a hermetic rotary compressor Aug. 15, 2000
6026855 Fuel tank one-way flow valve quick connector Feb. 22, 2000
6000417 Bi-directional magnetically-operated check valve for high-purity applications Dec. 14, 1999
5819793 Breather valve Oct. 13, 1998
5813429 Compressed natural gas charging system Sep. 29, 1998
5725018 Gravity check valve Mar. 10, 1998
5556267 Double acting pump Sep. 17, 1996
5439027 High pressure regulating valve Aug. 8, 1995
5411055 Flow limiting throttle element May. 2, 1995
5375621 Check valves Dec. 27, 1994
5320136 Magnetically operated check valve Jun. 14, 1994
5275309 One way valve with unitary valve element Jan. 4, 1994
5261897 Portable suction system Nov. 16, 1993
5242581 Shut-off valve Sep. 7, 1993
5141420 Scroll compressor discharge valve Aug. 25, 1992
5120210 Core structure for producing closed end sleeve Jun. 9, 1992
5097864 Adjustable flow poppet valve for injection molding Mar. 24, 1992

1 2 3










 
 
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