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Class Information
Number: 251/61.1
Name: Valves and valve actuation > Fluid actuated or retarded > Flexible wall expansible chamber reciprocating valve actuator > Flexible wall valves fluid
Description: Subject matter in which the surface of the flexible wall working member outside the expansible chamber constitutes the movable control member which member is adapted to be moved to engage a valve seat.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8657254 Fluid release valve using flexible fluid permeable membrane Feb. 25, 2014
8646471 Electrostatically addressable microvalves Feb. 11, 2014
8631798 Valving a respiratory gas pathway with a catheter balloon Jan. 21, 2014
8616234 Fluid control valve system and methods Dec. 31, 2013
8561963 Electrostatically addressable microvalves Oct. 22, 2013
8556225 Pump chamber configured to contain a residual fluid volume for inhibiting the pumping of a gas Oct. 15, 2013
8539981 Passive fluid flow regulator Sep. 24, 2013
8353308 Inflatable fluid conduit plug Jan. 15, 2013
8316878 Servo-operated valve Nov. 27, 2012
8286665 Multiplexed latching valves for microfluidic devices and processors Oct. 16, 2012
8272392 Electrostatically addressable microvalves Sep. 25, 2012
8220487 Microfabricated elastomeric valve and pump systems Jul. 17, 2012
8220494 Microfluidic large scale integration Jul. 17, 2012
8210209 Microfluidic system including a bubble valve for regulating fluid flow through a microchannel Jul. 3, 2012
8205856 Metering assembly and method of dispensing fluid Jun. 26, 2012
8168136 Fluid-conveying apparatus and method for conveying fluid by using the same May. 1, 2012
8157243 Insert molded evacuation valve Apr. 17, 2012
8136550 Elastic valve and microfluidic device including the same Mar. 20, 2012
8124218 Microfabricated elastomeric valve and pump systems Feb. 28, 2012
8104515 Microfabricated elastomeric valve and pump systems Jan. 31, 2012
8100293 Microfluidic dispensing assembly Jan. 24, 2012
8016260 Metering assembly and method of dispensing fluid Sep. 13, 2011
8002725 Embolic protection and plaque removal system with closed circuit aspiration and filtering Aug. 23, 2011
7997297 System and method for performing a chemical experiment Aug. 16, 2011
7938142 Firing valve May. 10, 2011
7874658 Liquid injection apparatus and method for driving the same Jan. 25, 2011
7845210 Fluid control device for a gas chromatograph Dec. 7, 2010
7685662 Pneumatic control valve and power reserve for a mattress Mar. 30, 2010
7637284 Sanitary diaphragm valve Dec. 29, 2009
7631852 Normally double-closed microvalve Dec. 15, 2009
7607641 Microfluidic valve mechanism Oct. 27, 2009
7571893 Valve with high temperature rating Aug. 11, 2009
7566264 Small duct high velocity damper assembly Jul. 28, 2009
7517376 Reverse pulse cleaning of filter elements Apr. 14, 2009
7429317 Electrokinetic device employing a non-newtonian liquid Sep. 30, 2008
7419132 Bladder valve Sep. 2, 2008
7325565 Backflow valve Feb. 5, 2008
7302959 Low-power wireless inflatable bladder damper for forced air heating, ventilation, and air conditioning systems Dec. 4, 2007
7273072 Valve body for a valve assembly Sep. 25, 2007
7143781 Flexible bladder apparatus for fluid flow control Dec. 5, 2006
7144616 Microfabricated elastomeric valve and pump systems Dec. 5, 2006
7143785 Microfluidic large scale integration Dec. 5, 2006
7114522 Adapter manifold with dual valve block Oct. 3, 2006
7059578 Diaphragm and hydraulically-operated valve using same Jun. 13, 2006
7059348 Drug delivery system Jun. 13, 2006
7048003 Polyvalve May. 23, 2006
7044432 Fluid channel valve for use with a disposable cartridge in extracorporeal circulations May. 16, 2006
7040338 Microfabricated elastomeric valve and pump systems May. 9, 2006
7032876 Fluid valve Apr. 25, 2006
7021333 Reverse flow modifiable combination valve Apr. 4, 2006

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