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Class Information
Number: 137/512.1
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Plural > Dividing and recombining in a single flow path
Description: Devices in which the valves are arranged in a single flow path and divide the flow into parallel paths which recombine after passing through the valves.










Sub-classes under this class:

Class Number Class Name Patents
137/512.15 Integral resilient member forms plural valves 242


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
7059344 Discharge valve mechanism for variable displacement compressor Jun. 13, 2006
7028709 One-way valve with poppet member Apr. 18, 2006
7025086 Reverse flow preventing device and electronic apparatus Apr. 11, 2006
6969314 Air exhauster invention Nov. 29, 2005
6959726 Valve assembly for attenuating bounce of hydraulically driven members of a machine Nov. 1, 2005
6932109 Scavenger valve assembly Aug. 23, 2005
6901953 Fuel metering device for a turbomachine injector Jun. 7, 2005
6880577 Reed valve assembly Apr. 19, 2005
6877524 Valve for winterizing a pool Apr. 12, 2005
6871664 Valve flange connection Mar. 29, 2005
6837784 Ventilation device Jan. 4, 2005
6834677 Over-molded check valves for fluid delivery systems Dec. 28, 2004
6820644 Delivery valve device for refrigerant fluid compressor Nov. 23, 2004
6817846 Gas compressor and method with improved valve assemblies Nov. 16, 2004
6802331 Particle-based check valve Oct. 12, 2004
6796327 Check valve with multiple doors Sep. 28, 2004
6796321 Pressure relief valve Sep. 28, 2004
6767193 Piston type compressor Jul. 27, 2004
6634379 Switching valve with flow direction-dependent cross-section Oct. 21, 2003
6616404 Ventilation fan Sep. 9, 2003
6581632 Automatic valve Jun. 24, 2003
6539974 Valve with guide extensions for valve plate Apr. 1, 2003
6530395 Check valve arrangement Mar. 11, 2003
6442936 Single stage or multi-stage compressor for a turbocharger Sep. 3, 2002
6432135 Torsion heart valve Aug. 13, 2002
6428292 Discharge valve Aug. 6, 2002
6409591 Automotive vehicle exhauster vent Jun. 25, 2002
6273463 Airbag vent valve and system Aug. 14, 2001
6270483 Liquid discharge regulator and liquid feeder equipped with the same Aug. 7, 2001
6257269 Multiple-purposed air valve component for air mattress Jul. 10, 2001
6253788 Check valve for use in a filler pipe for filling a fuel tank Jul. 3, 2001
6173739 Addow's checkvalved FDC Jan. 16, 2001
6171084 Discharge valve Jan. 9, 2001
6164936 Vertical reciprocating pump having easily installed piston with flap valves Dec. 26, 2000
6102171 Damping valve with adjustable damping force Aug. 15, 2000
6098656 Check valve Aug. 8, 2000
6095185 Fluid-flow control device particularly useful as a drip-irrigation emitter Aug. 1, 2000
6026852 Pressure relief valve and method of manufacturing the same Feb. 22, 2000
6016833 Valve plate for piston compressor, especially for air compression in motor vehicles Jan. 25, 2000
6012483 Switch-over valve having pivot axle articulated closure wings Jan. 11, 2000
5979584 Four-wheel drive transfer case controller Nov. 9, 1999
5979548 Heat exchanger having heat exchange tubes with angled heat-exchange performance-improving indentations Nov. 9, 1999
5971715 Pneumatic pump having radial ball check valve array Oct. 26, 1999
5957157 Pilot operated pressure/vacuum vent for a fuel storage tank Sep. 28, 1999
5934558 Water display with multiple characteristics Aug. 10, 1999
5918628 Multi-stage check valve Jul. 6, 1999
5819790 Fluid check valve Oct. 13, 1998
5819791 Check valve including means to permit selective back flow Oct. 13, 1998
5759097 Air extractor valve Jun. 2, 1998
5711343 Dual plate check valve Jan. 27, 1998

1 2 3 4 5 6










 
 
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