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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 |
| 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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