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Class Information
Number: 137/493.4
Name: Fluid handling > Line condition change responsive valves > Bi-directional flow valves > One head and seat carried by head of another > Supporting valve spring carried by supporting valve > Spring stop on supported valve stem
Description: Apparatus wherein the spring of the carried valve abuts a stop (e.g., a collar) on the carried valve stem.










Patents under this class:

Patent Number Title Of Patent Date Issued
8561637 Vent valve Oct. 22, 2013
8469051 Valve for limiting the tank pressure in a motor vehicle Jun. 25, 2013
RE41861 Decoupled check-relief valve Oct. 26, 2010
7451780 Multifunction valve for use in a hydraulic component Nov. 18, 2008
7171977 Combination pressure relief and topping valve Feb. 6, 2007
7163223 Lockout mechanism for a suspension system Jan. 16, 2007
7086388 Combination valve for fuel system Aug. 8, 2006
7073527 Assignable pressure governor valve Jul. 11, 2006
6910502 Decoupled check-relief valve Jun. 28, 2005
6805161 Hydraulic valve system Oct. 19, 2004
6305412 Double acting pressure relief valve with low pressure seal Oct. 23, 2001
6279247 Combination relief vent and dipstick apparatus for an oil filled pin joint Aug. 28, 2001
6196258 Pressure control valve and evaporation fuel discharge control device Mar. 6, 2001
6142167 Tanker roll shut-off vent valve assembly Nov. 7, 2000
6056029 Fuel-Transfer system May. 2, 2000
5402818 Fuel shut-off device Apr. 4, 1995
5378118 Cartridge assembly with orifice providing pressure differential Jan. 3, 1995
5307831 Safety relief valve for pressure vessels May. 3, 1994
5282492 Dual valve plate two-way pressure relief valve Feb. 1, 1994
5226442 Vacuum/pressure release valve Jul. 13, 1993
4691734 Valve seals Sep. 8, 1987
4460013 Pressure-vacuum vent Jul. 17, 1984
4300591 Anti-cavitation and overload relief valve for a hydraulic system Nov. 17, 1981
4212315 Shroud for pressure vacuum vent Jul. 15, 1980
4210170 Anti-cavitation and overload relief valve for a hydraulic system Jul. 1, 1980
4153073 Liquid dispensing and vapor recovery system and valve assembly utilized therein May. 8, 1979
4079855 Monolithic radiator cap for sealed pressurized cooling system Mar. 21, 1978
3971406 Vapor fuel control apparatus Jul. 27, 1976
3939866 Fuel saving device Feb. 24, 1976











 
 
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