Dual rate actuator

Dual speed hydraulic piston assembly

Elastic column of adjustable length

Fail safe fluid power device

Float control electrical circuit for a blade

Fluid actuating device for an electric circuit breaker

Fluid actuator device for a high-voltage power circuit breaker

Fluid control circuit for a radio controlled vehicle

Fluid control system for dual power steering

Fluid pressure system having pumps and valves

Fluid system having load pressure equalizing valve assemblies

Fluid system of a work vehicle having fluid combining means

Fluid-pressure driving device

Force servo actuator with asymmetric nonlinear differential...

Gas metering orifice for decreasing gas consumption of pneumatic

Hydraulic actuating arrangements

Hydraulic circuit for driving a ram of hydraulic press

Hydraulic control system

Hydraulic control systems for use with mining apparatus

Hydraulic cylinder extending in three force modes