1
Harold W Ensign, Donald G Griswold: Method and apparatus for control of a turbine generator. CLA VAL Co, Gausewitz Carr Rothenberg & Edwards, January 29, 1985: US04496845 (30 worldwide citation)

A turbine generator system for use in a flow line from a water supply to a water usage, treatment or storage system employs a remotely controlled valve for control of the flow of water through the turbine. The system is arranged to shut down upon occurrence of under or over voltage at the generator ...


2
J Albert Story Jr: Timer controlled valve. Cla Val Co, Gausewitz Carr & Rothenberg, May 23, 1978: US04090532 (28 worldwide citation)

A self-contained battery-operated three-way control valve is repetitively cycled by a clock timer for cyclical control of an automatic hydraulic valve. The control valve is driven to one or the other of two limit positions by a reversible motor under control of forward and reverse motor circuits tha ...


3
Harold W Ensign: Hollow spool valve. Cla Val Co, Gausewitz Carr & Rothenberg, December 4, 1979: US04176687 (26 worldwide citation)

A high capacity direct acting three-way bistable power operated valve is connected to control operation of an hydraulically operated magazine sprinkler control valve. The three-way bistable valve controls application of high pressure sea water and includes a slidable hollow valve spool having one en ...


4
Harold W Ensign: Method and apparatus for controlling a pump. Cla Val Co, Gausewitz Carr & Rothenberg, May 18, 1976: US03957395 (26 worldwide citation)

A safety control system for a pump and anti-surge valve protects the pump, the valve and the hydraulic main line system. The valve is controlled by a pressure responsive circuit and, via a limit switch on the valve, controls both the steady state running of the pump and the pump start. A timed start ...


5
Harold W Ensign: Manual control valve. Cla Val Co, Gausewitz Carr & Rothenberg, September 12, 1989: US04865078 (18 worldwide citation)

A manual control valve for a remotely operated munitions magazine sprinkler valve employs a compact body, a pressure input port and first and second output ports to which are secured tubular seat housings, each carrying a valve seat. First and second poppets are slidably mounted in the tubular seat ...


6
Harold W Ensign: Diaphragm valve. Cla Val Co, Gausewitz Carr & Rothenberg, January 1, 1980: US04181151 (17 worldwide citation)

A diaphragm valve includes an apertured diaphragm plate that separates mutually concentric input and output valve chambers. A flexible diaphragm extends somewhat loosely across the plate and seals an operating chamber on one side of the plate. The chamber contains a spring pressed retainer plate hav ...


7
Harold W Ensign, Clifford V Zieg: Fluid operated pinch valve. Cla Val Co, Gausewitz Carr & Rothenberg, August 22, 1978: US04108418 (17 worldwide citation)

A fluid operated pinch valve comprises a flexible sleeve fixed at its ends within a valve casing that has a laterally facing opening through which the sleeve may be inserted and replaced without removing the valve casing from the flow line. A casing cover section has a planar sealing face that bridg ...


8
Zieg Clifford V, Yelich William: Backflow preventer valve assembly. Cla Val Co, Gausewitz Richard L, September 24, 1974: US3837358 (17 worldwide citation)

Two series-related check valves are separated by a chamber (the 'zone') adapted to be drained by a relief valve in order to insure against backflow of water through the check valve which is nearest the water main. The relief valve incorporates a poppet which is operated by the combined actions of a ...


9
Reese James R: Pilot-operated modulating valve system and flow stabilizer incorporated therein. Cla Val Co, July 13, 1971: US3592223 (16 worldwide citation)

The valve system comprises a main valve including a diaphragm-operated poppet separating an inlet side from an outlet side, a pilot valve for opening and closing the main valve in response to a predetermined pressure or flow condition, and a restrictor (for example, the inlet nozzle of an ejector) c ...


10
William Yelich: Valve having a bias-mounted elastomeric sealing element, and method of constructing the same. Cla Val Co, Gausewitz Carr Rothenberg & Edwards, February 15, 1983: US04373550 (13 worldwide citation)

A radially inner portion of a flat annular elastomeric washer is inserted and retained in a frustoconical annular groove formed in a cylindrical valve seat of an inline disc check valve. The groove is positioned and dimensioned so that it grips the washer and holds it in a radially stretched, axiall ...



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