1
David L Becker, John W Curnow, Donald J West, Craig A Carlson: Variable force solenoid valve. Lectron Products, Harness Dickey & Pierce, May 7, 1996: US05513832 (30 worldwide citation)

A combined bearing/diaphragm seal for use in a solenoid valve assembly or the like is disclosed which provides a flexible fluid seal between the solenoid sub-assembly and the valve sub-assembly. The solenoid and valve sub-assemblies communicate mechanically via a portion of a solenoid armature which ...


2
Michael Slavin, Donald J West, John W Curnow: Electrically modulated pressure regulator valve with variable force solenoid. Lectron Products, Harness Dickey & Pierce, May 7, 1996: US05513673 (25 worldwide citation)

A variable force solenoid valve assembly is provided for use in an automatic transmission controller for controllably reducing a fluid inlet pressure to a desired outlet control pressure. The invention includes a solenoid sub-assembly secured to a valve body sub-assembly. The valve body includes a s ...


3
John W Curnow: Electrical variable orifice actuator. Lectron Products, Harness Dickey & Pierce, November 16, 1993: US05261637 (19 worldwide citation)

A solenoid-operated control valve for a variable assist power steering system of an automobile vehicle includes a valve structure which defines a variable flow orifice in response to a predetermined variable (e.g., vehicle velocity) thereby providing fluid pressure needed to modify user input torque ...


4
John W Curnow: Power transmission. Vickers Incorporated, Barnes Kisselle Raisch Choate Whittemore & Hulbert, February 16, 1988: US04724673 (8 worldwide citation)

A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions and a pump system with load sensing control for supplying fluid to said actuator. A meter-in valve is ...


5
John W Curnow: Power transmission. Sperry Rand Corporation Troy MI, Van Meter and George, November 16, 1971: US3620247 (3 worldwide citation)

A pilot-operated pressure relief valve has two concentric poppets in series between the inlet and outlet and each is controlled by a piston tending to open the same. The piston for the upstream poppet is responsive to inlet pressure and the piston controlling the downstream poppet is responsive to t ...