Patent ID: 6305416
Filing Date: 2001-10-23
Classification: F04B,F05C,Y10T

Abstract:
Hydraulic actuator comprising:an actuator body including an inlet, at least one outlet, a port communicating with a precharged diaphragm tank, and a port communicating with a pressure switch;the actuator body including a movable member which, in a first position, closes the inlet port and provides fluidic communication with the pressure switch; and in a second position, opens the inlet port and seals the pressure switch port; anda spring disposed within the actuator body urging the movable member toward the first position, wherein the movable member includes a bypass providing fluidic communication between the inlet and an interior of the actuator body when the movable member is in the first position and a member of a lubricious material and a lubricious coating.