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Class Information
Number: 137/902
Name: Fluid handling > Slush pump check valves
Description: Art collection drawn to slush pump check valves.

Patents under this class:

Patent Number Title Of Patent Date Issued
8567753 Tunable valve assembly Oct. 29, 2013
8567754 Tunable valve assembly Oct. 29, 2013
8550425 Impulse tolerant valve assembly Oct. 8, 2013
8496224 Tunable valve assembly Jul. 30, 2013
8261767 Powdered metal inlay Sep. 11, 2012
7540470 Powdered metal inlay Jun. 2, 2009
7168440 Valve body and seal assembly Jan. 30, 2007
7000632 Valve apparatus Feb. 21, 2006
6955181 Valve body and seal assembly Oct. 18, 2005
6701955 Valve apparatus Mar. 9, 2004
5740810 One hand push button fast flush device Apr. 21, 1998
5431186 Valve body design for use with pumps handling abrasive fluids Jul. 11, 1995
5345965 Valve body design for use with pumps handling abrasive fluids Sep. 13, 1994
5249600 Valve seat for use with pumps for handling abrasive fluids Oct. 5, 1993
5226445 Valve having convex sealing surface and concave seating surface Jul. 13, 1993
5088521 Mud pump valve Feb. 18, 1992
5082020 Valve body for oilfield applications Jan. 21, 1992
5062450 Valve body for oilfield applications Nov. 5, 1991
4922957 Valve with replaceable seal element May. 8, 1990
4860995 Valve element for use in pumps for handling fluids containing abrasive materials Aug. 29, 1989
4819689 Head-guided poppet valve member and valve assembly Apr. 11, 1989
4770206 Mud pump valve Sep. 13, 1988
4545404 Bonded valve with replaceable insert Oct. 8, 1985
4487222 Poppet type fluid valve with replaceable wear surface Dec. 11, 1984
4479508 Reinforced valve member Oct. 30, 1984
4448390 Vacuum control valve for automotive heating and airconditioning systems May. 15, 1984
4393895 Check valve for use with high pressure pump Jul. 19, 1983
4206901 Pressure-actuated valve with metering choke Jun. 10, 1980
4180097 Mud pump valve Dec. 25, 1979
4076212 Stretch seal valve Feb. 28, 1978

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