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Class Information
Number: 137/514.3
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > With retarder or dashpot > End of valve forms dashpot chamber
Description: Devices wherein the end of the valve has a dashpot chamber therein.










Patents under this class:

Patent Number Title Of Patent Date Issued
8584700 Discharge valve Nov. 19, 2013
8393156 Variable performance valve of a fuel nozzle for a turbine engine Mar. 12, 2013
8191573 Pressure regulating valve with a direct damping action Jun. 5, 2012
8136547 Poppet valve with diverging-converging flow passage and method to reduce total pressure loss Mar. 20, 2012
8100145 LIFD valve assembly Jan. 24, 2012
RE41861 Decoupled check-relief valve Oct. 26, 2010
7640944 Valve for prevention of low flow rates through flow meter Jan. 5, 2010
7628174 Hydraulic control arrangement Dec. 8, 2009
7429167 Scroll machine having a discharge valve assembly Sep. 30, 2008
7246635 Automatic flow rate control valve Jul. 24, 2007
7228869 Pressure limiting valve Jun. 12, 2007
6910502 Decoupled check-relief valve Jun. 28, 2005
6899113 Pressure relief valve May. 31, 2005
6851443 Apparatus and method for preventing resonance in a fuel vapor pressure management apparatus Feb. 8, 2005
6848893 Compressor check valve Feb. 1, 2005
6637456 Safety valve Oct. 28, 2003
6532989 Hydraulic distributor Mar. 18, 2003
6532987 Relief valve Mar. 18, 2003
6470909 Hydraulic system Oct. 29, 2002
5931191 Flow control valve for passing two fluids in opposite directions Aug. 3, 1999
5832954 Check valve assembly for inhibiting Helmholtz resonance Nov. 10, 1998
5669356 Control valve Sep. 23, 1997
5577533 Flexured shaft poppet Nov. 26, 1996
5404903 Smart vent valve for cargo tanks employed in transporting hazardous commodities Apr. 11, 1995
5230364 Pressure relief valve Jul. 27, 1993
5224511 Spring-loaded safety valve Jul. 6, 1993
5183075 Check valve Feb. 2, 1993
5161653 Electro-rheological shock absorber Nov. 10, 1992
5158109 Electro-rheological valve Oct. 27, 1992
5129419 Pressure control valve Jul. 14, 1992
5048553 Relief valve with overturn surge control for storage tank Sep. 17, 1991
4867603 Device for preventing flooding caused by sprinkler failure Sep. 19, 1989
4859155 Bypass valve for a displacement pump Aug. 22, 1989
4842198 Device for damage protection against local flooding caused by sprinkler failure Jun. 27, 1989
4766929 Check valve Aug. 30, 1988
4756334 Check-valve assembly, in particular for a pressurized water reactor Jul. 12, 1988
4693270 Check valve Sep. 15, 1987
4489752 Guard guided multiple element flow configured poppet valve Dec. 25, 1984
4386627 Accumulator high flow valve Jun. 7, 1983
4361280 Fluid distribution system and pressure equalizer-valves useful therein Nov. 30, 1982
4315524 Damping device for check valves Feb. 16, 1982
4257453 Peep valve with improved vibration damping Mar. 24, 1981
4228820 Seat guided poppet valve having flow and dampening control means Oct. 21, 1980
4161996 Exhaust muffler Jul. 24, 1979
4080987 Hydraulic safety valve Mar. 28, 1978
4018248 Valve Apr. 19, 1977











 
 
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