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current-us-classification:251/129.05
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Digital programmable driver for solenoid valves and associated method
US7578481
-
Aug 25, 2009
Local digital valve controller unit
US20090138128
-
May 28, 2009
Method for driving an electromagnetic actuator in a diaphragm carburettor for control of air/fuel ratio
US20080197309
-
Aug 21, 2008
Method and apparatus for driving a solenoid proportional control valve utilized for flow rate control
US7387289
-
Jun 17, 2008
Electrohydraulic valve servomechanism with adaptive resistance estimator
US7377480
-
May 27, 2008
Pulse width modulated fluidic valve
US20080083894
-
Apr 10, 2008
Method for controlling an actuator, using a retaining mark space ratio
US7237516
-
Jul 03, 2007
Solenoid-operated valve controller
US20070145316
-
Jun 28, 2007
Position sensor of a valve actuator for an internal combustion engine
US7188592
-
Mar 13, 2007
System for the monitor and control of rest rooms
US7177725
-
Feb 13, 2007
Electromagnetic valve
US7165754
-
Jan 23, 2007
Method of controlling microvalve actuator
US7156365
-
Jan 02, 2007
Well bore communication pulser
US7145834
-
Dec 05, 2006
Tubeless actuator with reduced secondary air gap
US7051992
-
May 30, 2006
Valve lift sensor
US7032549
-
Apr 25, 2006
Method of controlling microvalve actuator
US20060022160
-
Feb 02, 2006
A control method and controller for a solenoid-operated electrohydraulic control valve
US20060011878
-
Jan 19, 2006
Pwm voltage clamp for driver circuit of an electric fluid dispensing gun and method
US6978978
-
Dec 27, 2005
Method for manipulating dosage control apparatus
US6966325
-
Nov 22, 2005
Motor-operated valve apparatus
US20050199844
-
Sep 15, 2005
Low power dc solenoid valve
US6932317
-
Aug 23, 2005
Pwm voltage clamp for driver circuit of an electric fluid dispensing gun and method
US20050072949
-
Apr 07, 2005
Capillary valve that can be pulsed
US6854712
-
Feb 15, 2005
Magnetic actuator and method
US20040262557
-
Dec 30, 2004
Low power dc solenoid valve
US20040251440
-
Dec 16, 2004
Manually-opened and latchable with only residual magnetism, two-way two-position fluid control valve assembly and methods of operation
US6820856
-
Nov 23, 2004
Electronic valve actuator control system and method
US6810841
-
Nov 02, 2004
Digitally controlled direct drive valve and system and method for manufacturing the same
US6789558
-
Sep 14, 2004
Pulsed width modulation of 3-way valves for the purposes of on-line dilutions and mixing of fluids
US6786235
-
Sep 07, 2004
Manually-opened and latchable with only residual magnetism, two-way two-position fluid control valve assembly and methods of operation
US20040149947
-
Aug 05, 2004
Canister purge valve noise attenuation
US6739573
-
May 25, 2004
Extended range proportional valve
US6729601
-
May 04, 2004
Valve providing increase in flow for increase in power level
US6722626
-
Apr 20, 2004
Controllable valve particularly for delivering a pulsed flow of fluid
US6679278
-
Jan 20, 2004
Method for adjusting an actuator
US6644257
-
Nov 11, 2003
Solenoid valve control and method of controlling a solenoid valve
US6634277
-
Oct 21, 2003
Gas flow rate controller and gas appliance using the same
US6619613
-
Sep 16, 2003
Silting prevention controller
US6592099
-
Jul 15, 2003
Motor operated valve
US6561480
-
May 13, 2003
Precision controlled fast valve
US20020139949
-
Oct 03, 2002
Model-based position control for a solenoid actuated valve
US20020134956
-
Sep 26, 2002
Process for setting into oscillation an electromagnetic actuator
US6390113
-
May 21, 2002
Three-way flow control valve
US6382256
-
May 07, 2002
Pwm voltage clamp for driver circuit of an electric fluid dispensing gun and method
US20020050579
-
May 02, 2002
Extended range proportional valve method
US20020027213
-
Mar 07, 2002
Method and device for activating an electromagnetic consumer
US20010048087
-
Dec 06, 2001
Solenoid valve control apparatus and brake control apparatus
US6322166
-
Nov 27, 2001
Silting prevention controller
US20010042849
-
Nov 22, 2001
Control accuracy of a pulse-operated electromechanical device
US6310754
-
Oct 30, 2001
Miniature pulsatile flow controller
US6247493
-
Jun 19, 2001
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Actuator (10)
Control method (8)
Fluid (7)
Solenoid valve (7)
Controller (7)
Electrohydraulic (2)
Width (2)
Sensor (2)
Position (2)
Flow rate (2)
System and method (2)
Extended range proportional valve (2)