1
Richard G Jorgensen: Jet type liquid level sensor and system. Parker Hannifin Corporation, John N Wolfram, July 17, 1979: US04161188 (24 worldwide citation)

A jet type liquid level sensor and its combination with a fluid pressure operated valve whose opening and closing is controlled by the sensor at predetermined liquid levels within a tank in which the sensor and valve are installed. The sensor is designed for installation such that the jet stream iss ...


2
Shigeaki Doto: Linearly operative electric/fluid pressure valve device. The Nippon Air Brake, R W McIntire Jr, March 7, 1978: US04077674 (20 worldwide citation)

An electrically controlled, fluid pressure operated valve device in which an electro-magnet is energized to produce magnetic force in response to which a self-lapping valve assembly is actuated to provide output fluid pressure according to the degree of energization of the electro-magnet. A bias spr ...


3
Millar James S, Henderson Glenn W: Pilot valve for controlling a fluid pressure operated valve. Parker Hannifin Corporation, Wolfram John N, July 29, 1975: US3896843 (14 worldwide citation)

A system for controlling the rate of fluid flow through a main fluid pressure operated valve that is controlled by a pilot valve. The pilot valve includes a movable wall responsive to pressure differential in the main system and also includes relatively movable seat and plug members that control flo ...


4
Fontaine John G: Auxiliary operating apparatus for vehicle service brake. Fail Safe Brake Corporation, Oltman and Flynn, June 10, 1975: US3888552 (7 worldwide citation)

An auxiliary operating device for a service brake including a fluid pressure operated valve with a valve stem for opening and closing an orifice connected to a source of hydraulic pressure and with a connector portion attached thereto actuated by the venting of a pressure chamber to pressurize fluid ...


5
William T Houston: Fluid pressure operated valve. Bauer Amer & King, February 8, 1977: US04006754 (6 worldwide citation)

A fluid pressure operated valve includes a housing into which fits an expansible membrane. The housing is formed with an input aperture and an output aperture each respectively closable by one of a pair of movable flaps. The membrane is coupled to the fluid pressure the application of which causes t ...


6
Branson Charles D, Genbauffe Francis S: Fuel control system for a cooking apparatus or the like. Robertshaw Controls Company, April 20, 1971: US3575542 (6 worldwide citation)

This disclosure relates to a control system for a bake burner and a broil burner of a domestic oven or the like wherein a control device is adapted to interconnect a source of fuel to a conduit means leading to the bake burner and the broil burner, the conduit means having fluid pressure operated va ...


7
Hawkins Wallace Gerald: Improvements in or relating to the manufacture of plastic articles.. Clarks, June 11, 1969: GB1154561-A (6 worldwide citation)

1,154,561. Mixing apparatus. CLARKS Ltd. 9 June, 1966 [10 March, 1965], No. 10256/65. Heading B1C [Also in Division B5] A mould cavity 1c is connected by a duct 35 with a mixing chamber 46 into which a mixing head projects, the mixing head having a plurality of conduits 49, 50 through which the cons ...


8
Jimmy B Nichols: Fluid pressure operated valve. Emerson Electric Co, Charles E Markham, October 30, 1984: US04479507 (4 worldwide citation)

A fluid pressure operated valve device for connection to the inlet and outlet sides of a pilot valve has a two part, axially separable hollow cylindrical body with axially aligned inlet and outlet passageways, a side ported hollow cylindrical liner of smaller diameter having a closed end and an open ...


9
Margrave Wilton: Pilot controlled fluid pressure operated valve. Parker Hannifin, December 3, 1958: GB805452-A (4 worldwide citation)

805,452. Fluid pressure-operated valves. PARKER - HANNIFIN CORPORATION [formerly PARKER APPLIANCE CO.]. July 4, 1956, No. 20651/56. Class 135. A valve between the compressor of an aeroplane jet engine and the leading edge of the engine comprises an inlet 2 in a casing having an outlet 3, two cylindr ...


10
Fluid pressure operated valves. Broady Isolmatic, Dsb Valves Broady & Son Lt, October 22, 1980: GB2044886-A (4 worldwide citation)

A fluid pressure operated valve has a valve member (9) movable within a housing (1) between two end positions. In one form of the invention each end position constitutes a valve closing position and springs (12) urge the valve member (9) towards a central position where the valve is open. In another ...