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Class Information
Number: 137/505.11
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > With relief valve
Description: Devices having a port leading from the low pressure side of the valve to waste and controlled by a normally closed pressure responsive valve.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8567302 Compressed gas operated instrument, in particular a surgical instrument Oct. 29, 2013
8490647 Fluid pressure control device Jul. 23, 2013
8459288 Pressure reducing valve and regulator for gas Jun. 11, 2013
8425732 Method of operation for a recycler assembly Apr. 23, 2013
8381763 Gas filling and dispensing device, vessel with such device, and operational circuit Feb. 26, 2013
8342201 Pressure reducing valve Jan. 1, 2013
8336575 Fluid pressure control device Dec. 25, 2012
8336578 Quick release gas pressure regulator Dec. 25, 2012
8286660 Valve body with dual sense mechanism Oct. 16, 2012
8156958 Service regulator with improved boost performance Apr. 17, 2012
8132558 Common rail fuel pump with combined discharge and overpressure relief valves Mar. 13, 2012
8117839 Propane injection system Feb. 21, 2012
7921866 First stage pressure regulator for a two-stage underwater breathing apparatus Apr. 12, 2011
7789102 Air compressor having a pneumatic controller for controlling output air pressure Sep. 7, 2010
7757703 Device for regulating pressure Jul. 20, 2010
7677266 Compact manifolded fail safe hydraulic control system Mar. 16, 2010
7520297 Pressure regulator device and system Apr. 21, 2009
7398793 Rapidly opening pressure regulating valve, fire extinguishing apparatus using the same, high-pressure gas cylinder apparatus and apparatus for rapidly supplying fluid Jul. 15, 2008
7392824 Fluid power device with a pressure regulator Jul. 1, 2008
7353834 Variable rate pressure regulator Apr. 8, 2008
7325397 Device for continuously supplying compressed air from a portable container to a pneumatic tool by greatly reducing pressure of compressed air and then precisely adjusting same Feb. 5, 2008
7240768 Flapper finger valve Jul. 10, 2007
7013916 Sub-atmospheric gas delivery method and apparatus Mar. 21, 2006
6990991 Safety device for a gas distribution system in an airplane and gas distribution method Jan. 31, 2006
6907900 Pressure regulated, safety bypass valved, bottle adapted fitting for lever actuated release of a regulated gas Jun. 21, 2005
6899199 Flapper finger valve assembly May. 31, 2005
6820641 Internally piloted dome loaded regulator Nov. 23, 2004
6568437 Inlet fitting May. 27, 2003
6553979 Pressure-regulating piston with built-in relief valve Apr. 29, 2003
6554017 Pressure regulating valve with secondary venting measures Apr. 29, 2003
6405722 Single stage regulator and method for regulating compressed air therefor Jun. 18, 2002
6186168 Pressure Regulator Feb. 13, 2001
6176256 Gas pressure-reducing valve Jan. 23, 2001
5890512 CNG regulator Apr. 6, 1999
5755254 Two stage pressure regulator May. 26, 1998
5732735 Pressure reduction valve Mar. 31, 1998
5630935 Pressure relief valve with sample removal port May. 20, 1997
5598869 Pressure regulating unit Feb. 4, 1997
5595209 Fluid pressure regulator establishing a stable output fluid pressure Jan. 21, 1997
5505559 Safety valve for bouyancy compensator Apr. 9, 1996
5465750 Two-stage regulator Nov. 14, 1995
5443186 Fluid dispenser which has a button actuated regulator valve and a pressure relief port in the button Aug. 22, 1995
5336166 Three stage implantable valve Aug. 9, 1994
5307834 Gas flow control regulator May. 3, 1994
5247959 Multi-function valve Sep. 28, 1993
5186209 Accurate high-flow clean regulator with input-pressure balancing Feb. 16, 1993
5135023 Pressure regulator Aug. 4, 1992
5086807 Pressure reducer Feb. 11, 1992
5065788 Accurate high-flow clean regulator with input-pressure balancing Nov. 19, 1991
4986738 Airflow control system pump and housing Jan. 22, 1991

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