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Class Information
Number: 137/516.27
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Plural seating > Sequential
Description: Valves wherein the seating is sequential.










Sub-classes under this class:

Class Number Class Name Patents
137/516.29 Resilient gasket 126


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8240329 Fluid control valve Aug. 14, 2012
8043186 Two stage check valve for automatic transmission system Oct. 25, 2011
8011364 Exhalation valve for use in an underwater breathing device Sep. 6, 2011
7754166 Disinfection apparatus with connection device Jul. 13, 2010
7637323 Ball seat having fluid activated ball support Dec. 29, 2009
7624755 Gas valve with overtravel Dec. 1, 2009
7552744 Decompression valve Jun. 30, 2009
7552743 Self cleaning flow shutoff valve Jun. 30, 2009
7503341 Self cleaning flow shutoff valve and associated methods Mar. 17, 2009
7469712 Relief valve Dec. 30, 2008
7387136 Fuel pressure regulation valve Jun. 17, 2008
7334603 Check valve Feb. 26, 2008
7225831 Fluid flow control valve Jun. 5, 2007
7210497 Pressure relief device with increased flow rate May. 1, 2007
7178552 Valve Feb. 20, 2007
6901953 Fuel metering device for a turbomachine injector Jun. 7, 2005
6736164 Pressure control valve for a fuel tank May. 18, 2004
6681796 Drainage valve pipe tap assembly Jan. 27, 2004
6651693 Check valve Nov. 25, 2003
6446613 Two-stage pressure limiting valve Sep. 10, 2002
6435208 Flame-retardant pressure equalizing valve Aug. 20, 2002
6425413 Valve with secondary load bearing surface Jul. 30, 2002
6422127 Hydraulic actuation arrangement Jul. 23, 2002
6352085 Pressure relief valve Mar. 5, 2002
6289926 Flapper valve assembly with seat having load bearing shoulder Sep. 18, 2001
6263910 Valve with secondary load bearing surface Jul. 24, 2001
6196261 Flapper valve assembly with seat having load bearing shoulder Mar. 6, 2001
6039072 Safety valve arrangement Mar. 21, 2000
5983927 Inlet valve assembly Nov. 16, 1999
5931191 Flow control valve for passing two fluids in opposite directions Aug. 3, 1999
5927607 Sprinkle with velocity control disc Jul. 27, 1999
5893389 Metal seals for check valves Apr. 13, 1999
5881759 Air-ventilating valve Mar. 16, 1999
5584314 Self-cleaning inlet head for a fluid Dec. 17, 1996
5465752 Multi-function valve for a riser in a sprinkler system Nov. 14, 1995
5411054 Positive displacement compressor May. 2, 1995
5404903 Smart vent valve for cargo tanks employed in transporting hazardous commodities Apr. 11, 1995
5203466 Fuel cap Apr. 20, 1993
5174463 Cap for a container, especially a vehicle radiator Dec. 29, 1992
5170818 Safety valve Dec. 15, 1992
5161572 Pressure valve Nov. 10, 1992
5069188 Regulated canister purge solenoid valve having improved purging at engine idle Dec. 3, 1991
5054518 Variable flow self-cleaning valve preferably for ventricular offtake branches of cephalorachidian fluid Oct. 8, 1991
5039284 Fuel pump with a vapor vent valve Aug. 13, 1991
5033506 Delivery valve Jul. 23, 1991
5014759 Vehicle wheel having valve means to prevent misuse May. 14, 1991
4890640 Drainage valve Jan. 2, 1990
4846216 Fluid power valve device Jul. 11, 1989
4822112 Modulator with two-stage orificed master cylinder bypass valve Apr. 18, 1989
4781213 Ball check valve Nov. 1, 1988

1 2










 
 
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