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Class Information
Number: 137/845
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Resilient material valve > Having expansible port > Apertured plate
Description: Valve wherein the resilient body is a substantially flat plate-like member having an expansible orifice formed therethrough.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8701928 Spout for a spill-proof beverage container Apr. 22, 2014
8652056 Deflation control valve Feb. 18, 2014
8443840 Excessive pressure release valve and release valve unit having the release valve May. 21, 2013
8388337 Process and device for casting products intended for human consumption Mar. 5, 2013
8375994 Valve for electronic enclosure Feb. 19, 2013
7766044 Two-way damper Aug. 3, 2010
7691088 Vascular access device Apr. 6, 2010
7503392 Deformable ball seat Mar. 17, 2009
7389788 Low pressure measurement devices in high pressure environments Jun. 24, 2008
6634384 One-way valve for use with vacuum pump Oct. 21, 2003
6581641 One-way valve for use with vacuum pump Jun. 24, 2003
6583435 Manual operating means for valves Jun. 24, 2003
6341735 Receptacle fitted with a dispenser head Jan. 29, 2002
6280422 Feeding apparatus with replaceable feeding bottle Aug. 28, 2001
6269780 Water heater heat trap Aug. 7, 2001
6202766 Relief valve Mar. 20, 2001
6182698 Valve assembly Feb. 6, 2001
6176234 Mouthpiece for a nebulizer Jan. 23, 2001
5984902 Outdwelling slit valve and variable control for controlling opening and closing the slit Nov. 16, 1999
5878778 Elastomeric cut-off valve Mar. 9, 1999
5843044 Outdwelling slit valve and variable control for controlling opening and closing the slit Dec. 1, 1998
5794661 Tank isolation valve Aug. 18, 1998
5660200 Double-valved variable pressure device for hydrocephaly Aug. 26, 1997
5499729 Infant feeding bottle including pressure equalizing diaphragm Mar. 19, 1996
5431290 Baby bottle for improved flow Jul. 11, 1995
5396925 Anti-free flow valve, enabling fluid flow as a function of pressure and selectively opened to enable free flow Mar. 14, 1995
5390805 System comprising a container having a slit valve as a venting valve and a liquid contained in said container Feb. 21, 1995
5363877 Suction regulating valve Nov. 15, 1994
5342316 Resealable sampling port Aug. 30, 1994
5322094 Bottle capping and pressurizing device Jun. 21, 1994
5312188 Temperature sensing apparatus May. 17, 1994
5267966 Hemostasis cannula and method of making a valve for same Dec. 7, 1993
5261885 Valved catheter Nov. 16, 1993
5222522 Elastic valve for controlling a fluid flow Jun. 29, 1993
5205834 Two-way outdwelling slit valving of medical liquid flow through a cannula and methods Apr. 27, 1993
5169393 Two-way outdwelling slit valving of medical liquid flow through a cannula and methods Dec. 8, 1992
5143027 Reed valves for two stroke engines Sep. 1, 1992
5115980 Manually operated dual invertible pump May. 26, 1992
5005737 Flexible dispensing closure having a slitted resilient outlet valve and a flanged vent valve Apr. 9, 1991
4991745 Dispensing valve with trampoline-like construction Feb. 12, 1991
4921071 Marine stern drive with improved fluid inspection reservoir May. 1, 1990
4869431 Nozzle and a device for the use of a nozzle of this type Sep. 26, 1989
4794942 Air breather plug assembly for use in power transmission unit Jan. 3, 1989
4654676 Valve element for use in an ink-jet printer head Mar. 31, 1987
4646945 Vented discharge assembly for liquid soap dispenser Mar. 3, 1987
4620648 Pressure-responsive valve Nov. 4, 1986
4579104 Device for minimizing hot water heat loss in a water heater Apr. 1, 1986
4552537 Marine propulsion device with engine heat recovery system and streamlining hull closures Nov. 12, 1985
4244379 Check valve for blood drawing apparatus Jan. 13, 1981
4242112 Solar powered dehumidifier apparatus Dec. 30, 1980

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