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Class Information
Number: 137/505.37
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Reactor surface separated by apertured partition > Reactor surface is diaphragm > With valve closing bias
Description: Devices in which the valve head is provided with a bias which opposes the opening bias but is of less strength.










Patents under this class:

Patent Number Title Of Patent Date Issued
8679694 Fluidic control system and method of manufacture Mar. 25, 2014
8485213 Internal relief valve apparatus for use with loading regulators Jul. 16, 2013
8327877 Pressure reducing apparatus Dec. 11, 2012
8327876 Fluid controller Dec. 11, 2012
8087428 High pressure inlet regulator Jan. 3, 2012
7905247 Vacuum actuated valve for high capacity storage and delivery systems Mar. 15, 2011
7556057 Gas pressure regulator Jul. 7, 2009
7418973 Device to reduce noise in pressure regulators Sep. 2, 2008
7192665 Regulator for fuel cell Mar. 20, 2007
7157168 Regulator Jan. 2, 2007
7021329 Vaporizing pressure regulator Apr. 4, 2006
6079434 Propane regulator with a balanced valve Jun. 27, 2000
6039071 Valve seal mechanism Mar. 21, 2000
6024117 Valve guide structure Feb. 15, 2000
5971013 Pneumatic regulating pressure reducing valve Oct. 26, 1999
5810041 Pressure regulator Sep. 22, 1998
5727588 Depressurizing connector Mar. 17, 1998
5586569 Pneumatic pressure regulator Dec. 24, 1996
5443083 Pressure-reducing regulator for compressed natural gas Aug. 22, 1995
5261447 Pneumatic regulating valve Nov. 16, 1993
5226392 Fuel pressure control valve for internal combustion engines Jul. 13, 1993
5027644 Method and apparatus for injecting acoustic signals into live gas mains Jul. 2, 1991
4489751 Pressure reducing regulator for oxygen service Dec. 25, 1984
4450858 Gas pressure reducing regulator May. 29, 1984
4413649 Air pressure regulator Nov. 8, 1983
4287909 Valve for developing variable output pressure Sep. 8, 1981
3990470 Means for controlling fluid flow Nov. 9, 1976











 
 
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