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Class Information
Number: 251/129.06
Name: Valves and valve actuation > Electrically actuated valve > Having element dimensionally responsive to field
Description: Subject matter wherein a dimension of the valve or actuator changes in size when subjected to a magnetic or an electrical field to thereby control the flow of the fluent material.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8662312 Piezoelectric valve and optical granular material-sorting apparatus utilizing such piezoelectric valve Mar. 4, 2014
8659376 Adjustable mid air gap magnetic latching solenoid Feb. 25, 2014
8651451 Microfluidic device with fluid driving capability Feb. 18, 2014
8631825 Piezo valve Jan. 21, 2014
8608127 Piezoelectric proportional control valve Dec. 17, 2013
8585007 Valve operated by its own medium Nov. 19, 2013
8579253 Fuel injector valve Nov. 12, 2013
8561963 Electrostatically addressable microvalves Oct. 22, 2013
8556227 Temperature-compensated piezoelectric flexural transducer Oct. 15, 2013
8551599 Reconfigurable microactuator and method of configuring same Oct. 8, 2013
8522751 Fuel pressure regulator for a motor vehicle Sep. 3, 2013
8506584 Fluid jet device, drive device of fluid jet device, surgical instrument, and method of driving fluid jet device Aug. 13, 2013
8480014 Fluid injection valve Jul. 9, 2013
8464750 Magnetostrictive pressure regulating system Jun. 18, 2013
8413953 Polymer actuator, and valve and shaft-sealing structure each using the same Apr. 9, 2013
8403292 Microvalve having magnetic wax plug and flux control method using magnetic wax Mar. 26, 2013
8403294 Electrostatic actuation for management of flow in micro-total analysis systems (.mu.-TAS) and related method thereof Mar. 26, 2013
8381765 Valve Feb. 26, 2013
8366602 Electrically activated valve for implantable fluid handling system Feb. 5, 2013
8356792 Sub sea actuator Jan. 22, 2013
8348229 Faucet assembly Jan. 8, 2013
8342424 Fuel injection apparatus Jan. 1, 2013
8333361 Wireless power transfer device for a fluid delivery apparatus Dec. 18, 2012
8272392 Electrostatically addressable microvalves Sep. 25, 2012
8250855 Procedure for operating a reducing agent metering valve of a SCR-exhaust gas purifying system Aug. 28, 2012
8240635 Flow rate accuracy of a fluidic delivery system Aug. 14, 2012
8220533 Downhole piezoelectric devices Jul. 17, 2012
8220491 Piezoelectric valve Jul. 17, 2012
8205631 Active material actuated vent valve Jun. 26, 2012
8191856 Piezoelectric element driven metal diaphragm control valve Jun. 5, 2012
8190303 Systems and methods to dissipate heat in an information handling system May. 29, 2012
8183741 Valves based on reversible piezoelectric rotary motor May. 22, 2012
8181932 Normally open type piezoelectric element driven metal diaphragm control valve May. 22, 2012
8167265 Microvalve having magnetic wax plug and flux control method using magnetic wax May. 1, 2012
8162286 Piezoelectric driven control valve Apr. 24, 2012
8152136 Polymer microvalve with actuators and devices Apr. 10, 2012
8141844 Flow rate accuracy of a fluidic delivery system Mar. 27, 2012
8132594 Hydraulic valve actuated by piezoelectric effect Mar. 13, 2012
8100346 Piezoelectric actuator with multi-function spring and device using same Jan. 24, 2012
8091859 Valve for controlling fluids Jan. 10, 2012
8092664 Electrowetting-based valving and pumping systems Jan. 10, 2012
8082952 Piezoelectric bending element actuator for servo valve Dec. 27, 2011
8079568 Valve with magnetic sealing element made of foam Dec. 20, 2011
8056881 Electrostatic actuation for management of flow in micro-total analysis systems (.mu.-TAS) and related method thereof Nov. 15, 2011
8002235 Electrically actuated valves made from shape memory alloy wires embedded in elastomer Aug. 23, 2011
7975723 Controlling fluid through an array of fluid flow paths Jul. 12, 2011
7971850 Electroactive polymer devices for controlling fluid flow Jul. 5, 2011
7963458 Ultrasonic liquid delivery device Jun. 21, 2011
7955684 Adaptive membrane structure with insertable protrusions Jun. 7, 2011
7954785 Hydraulic slide valve provided with a piezoelectric washer Jun. 7, 2011

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