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Class Information
Number: 137/904
Name: Fluid handling > Cushion check valves
Description: Art collection drawn to cushion check valves.

Patents under this class:

Patent Number Title Of Patent Date Issued
8496224 Tunable valve assembly Jul. 30, 2013
8282788 Extraction apparatus and method of extracting essential oils, essence, and pigments from odorous raw material by microwave heating under sub-critical conditions Oct. 9, 2012
8282789 Microwave apparatus and method of extracting essential oils, essence, and pigments with gas flow Oct. 9, 2012
7249611 Check valve Jul. 31, 2007
7168446 High impact discharge valve Jan. 30, 2007
7152622 Check valve Dec. 26, 2006
6779554 Return check valve Aug. 24, 2004
6260236 Door closer with hydraulic back checking Jul. 17, 2001
5520522 Valve arrangement for a micro pump May. 28, 1996
5483991 Valve with self-centering seat Jan. 16, 1996
5373867 Reed valve mechanism Dec. 20, 1994
5341840 Bonnetless swing check valve Aug. 30, 1994
5307835 Top-entry check valve with threaded fasteners May. 3, 1994
5247912 Reed valve mechanism and method for constructing same Sep. 28, 1993
5064169 Shock absorbing means for flow control devices Nov. 12, 1991
5011116 Shock absorbing sealing means for flow control devices Apr. 30, 1991
4995422 Flow control valve Feb. 26, 1991
4922962 Pneumatic oscillators May. 8, 1990
4901760 Reed valve means Feb. 20, 1990
4867199 Bi-petal l check-valve construction Sep. 19, 1989
4858642 Impact resistant pressure relief valve Aug. 22, 1989
4684334 Inlet valve assembly for paint sprayer Aug. 4, 1987
4495859 Cover assembly for vertical exhaust pipes Jan. 29, 1985
4398559 Valve member and assembly with inlet and outlet pressure relief grooves Aug. 16, 1983
4350179 Valve assembly with relief groove Sep. 21, 1982

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