Fail safe valve and multiplexed fluid control systems incorporat
Fail-passive actuator control
Fastening means for closing a servomotor
Fault detector for a triplexed mechanical or hydromechanical sys
Feedback mechanism for variable displacement hydraulic device ha
Feedback mechanism for variable displacement hydraulic device ha
Filter for a servomotor
Flight control system employing three controllers operating a du
Floating coil servo valve
Flow through cap for attenuating any noise caused by air flow in
Fluid actuated positioner
Fluid apparatus
Fluid booster with dual member input valve
Fluid control system
Fluid operated mechanical power amplifier
Fluid operated position regulator
Fluid pressure device
Fluid pressure operable servo positioner
Fluid pressure operated servomotor
Fluid pressure operated torque amplifier and a vehicular power s