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Class Information
Number: 137/846
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Resilient material valve > Having expansible port > Having exit lip
Description: Valve wherein the resilient body has a fluid passage therethrough a portion of which is substantially nondeformable, which passage terminates in an expansible port at the point where the fluid flows from the body.


Sub-classes under this class:

Class Number Class Name Patents
137/850 Internally extending mount 27
137/849 Multiple slit 81
137/848 Side vent 17
137/847 With biasing means 37


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7533696 One-way medical valve apparatus May. 19, 2009
7530369 One-way elastomer valve May. 12, 2009
7509978 Non-return device Mar. 31, 2009
7476368 Method and device for deactivating items and for maintaining such items in a deactivated state Jan. 13, 2009
7445028 Check valves Nov. 4, 2008
7422034 Check valve Sep. 9, 2008
7395833 Check-valve for reduction of leakage caused by valve flapping Jul. 8, 2008
7249612 Mounting structure of an open/close valve in a sealed body Jul. 31, 2007
7243681 Check valve Jul. 17, 2007
7104279 Method and apparatus for preventing stagnation in fluid reservoirs Sep. 12, 2006
7044150 Combination vent/check valve assembly May. 16, 2006
7028707 Valve for use with chest drainage system Apr. 18, 2006
7028981 Non-return valve Apr. 18, 2006
6974539 Combination filter element support and anti-prefill valve Dec. 13, 2005
6953059 Check valve with hanger Oct. 11, 2005
6934989 Inflatable article Aug. 30, 2005
6892899 Passive syrup delivery system May. 17, 2005
6851448 Rotary connector with valve Feb. 8, 2005
6834677 Over-molded check valves for fluid delivery systems Dec. 28, 2004
6824117 Non-return valve Nov. 30, 2004
6766816 Collapsible dispensing system Jul. 27, 2004
6766824 Fluid control valve and a feedback control system therefor Jul. 27, 2004
6702255 H-shape duckbill hemostasis valve assembly including guide wire seal Mar. 9, 2004
6684903 Vacuum demand valve Feb. 3, 2004
6585005 Reinforced tide gate valve Jul. 1, 2003
6533254 Carburetor fuel pump Mar. 18, 2003
6527011 Flexible retainer ring for duck bill valve Mar. 4, 2003
6481464 Check valve Nov. 19, 2002
6453940 Insert bonded combination valve Sep. 24, 2002
6453941 Pipe tubular element comprising a rigid longitudinal portion and a flexible longitudinal part in one single piece Sep. 24, 2002
6402190 Non return valve for an airbag Jun. 11, 2002
6367505 Check valve with oversized bill Apr. 9, 2002
6305420 Head gasket with a check valve Oct. 23, 2001
6286732 Dispenser valve with increased flow capacity Sep. 11, 2001
6269780 Water heater heat trap Aug. 7, 2001
6260771 Windsheild washer valve Jul. 17, 2001
6247488 Non return valve system and method for forming said non return valve system Jun. 19, 2001
6170513 Inflation nozzle structure of an inflatable envelope Jan. 9, 2001
6155299 Windshield washer valve Dec. 5, 2000
6148860 Low volume vacuum toilet assembly Nov. 21, 2000
6136253 Method for molding duckbill valve Oct. 24, 2000
6092551 Duckbill valve Jul. 25, 2000
6089260 Nested duckbill check valves Jul. 18, 2000
6079449 System for delivering and maintaining the sterility and integrity of flowable materials Jun. 27, 2000
6062436 Flexible vented self-sealing dispensing valve May. 16, 2000
6053194 Duckbilled check valves and methods of making and using same Apr. 25, 2000
6044859 Valve apparatus and method Apr. 4, 2000
6029288 Power flush tank with improved air inducer Feb. 29, 2000
6019122 Membrane-type inflation nozzle Feb. 1, 2000
6016839 Air diffuser valve Jan. 25, 2000

1 2 3 4


 
 
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