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7028978 Proportional solenoid-controlled fluid valve having compact pressure-balancing armature-poppet assembly  
A proportional solenoid-driven valve control assembly comprised of a moveable, magnetic armature adjacent to a fixed magnetic pole piece, providing fluid leakage containment, and having no...
6974117 Proportional valve actuating apparatus  
A valve actuating apparatus for providing proportional control of a fluid flow that includes a housing having a valve body with an inlet port and an outlet port. In one embodiment, the valve...
6715732 Proportional solenoid-controlled fluid valve assembly  
A proportional solenoid-driven valve control assembly contains a moveable, magnetic armature positioned adjacent to one end of a fixed pole piece that protrudes from a solenoid bore and is...
6631633 Method and apparatus for calibrating a variable force solenoid  
A variable force solenoid valve assembly generally includes a coil, magnetic pole, armature, and one or more variable size air gaps that are disposed within the solenoid. The solenoid may be...
Matches 1 - 4 out of 4