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Class Information
Number: 137/516.29
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Plural seating > Sequential > Resilient gasket
Description: Valves wherein a resilient gasket is provided at the seating surface and the deformation of the gasket provides one seating.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8651188 Gas lift barrier valve Feb. 18, 2014
8622082 Check valve and method and apparatus for extending life of check valves Jan. 7, 2014
8584700 Discharge valve Nov. 19, 2013
8567754 Tunable valve assembly Oct. 29, 2013
8567753 Tunable valve assembly Oct. 29, 2013
8550425 Impulse tolerant valve assembly Oct. 8, 2013
8517046 Redundant metal-to-metal seals for use with internal valves Aug. 27, 2013
8496224 Tunable valve assembly Jul. 30, 2013
8317498 Valve-seat interface architecture Nov. 27, 2012
8186377 Fluid on-off valve device May. 29, 2012
8141849 Valve body and seal assembly Mar. 27, 2012
7909057 Valve insert Mar. 22, 2011
7891374 Suction valve Feb. 22, 2011
7641175 Valve body and seal Jan. 5, 2010
7624755 Gas valve with overtravel Dec. 1, 2009
7591450 Valve body and seal assembly Sep. 22, 2009
7546849 Rotating bonded valve assembly Jun. 16, 2009
7513483 Valve body and seal assembly Apr. 7, 2009
7380569 Valve body for backflow prevention valve Jun. 3, 2008
7334603 Check valve Feb. 26, 2008
7322373 High accuracy low leakage valve for high pressure applications Jan. 29, 2008
7222837 Valve body with integral seal retention groove May. 29, 2007
7172175 Suction valve Feb. 6, 2007
7168440 Valve body and seal assembly Jan. 30, 2007
7004195 Discharge valve Feb. 28, 2006
7000632 Valve apparatus Feb. 21, 2006
6719003 Charge valve for an air conditioning system Apr. 13, 2004
6701955 Valve apparatus Mar. 9, 2004
6698450 Discharge valve Mar. 2, 2004
6695007 Suction valve Feb. 24, 2004
6659127 Relief valve Dec. 9, 2003
6497248 Pressure relief device with one piece gasket Dec. 24, 2002
6340031 Check valve for refueling pipe of fuel tank Jan. 22, 2002
6227240 Unitized spherical profile check valve with replaceable sealing element May. 8, 2001
6109295 High reliability and efficiency valve with large flow capacity Aug. 29, 2000
6105610 Cartridge valve with triple sequential seal Aug. 22, 2000
6095186 Plural valve seating arrangement Aug. 1, 2000
5909748 Pressure relief valve Jun. 8, 1999
5893389 Metal seals for check valves Apr. 13, 1999
5785082 In-line fuel fill valve Jul. 28, 1998
5782269 Soft seal poppet type check valve Jul. 21, 1998
5603485 Valve plate for a thermostatic valve Feb. 18, 1997
5431186 Valve body design for use with pumps handling abrasive fluids Jul. 11, 1995
5411056 Pressure relief valve May. 2, 1995
5345965 Valve body design for use with pumps handling abrasive fluids Sep. 13, 1994
5320136 Magnetically operated check valve Jun. 14, 1994
5299598 Check valve Apr. 5, 1994
5275204 Valve element Jan. 4, 1994
5263847 Subsurface tubing safety valve Nov. 23, 1993
5249600 Valve seat for use with pumps for handling abrasive fluids Oct. 5, 1993

1 2 3










 
 
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