1
Zdeblick Mark: Integrated, microminiature electric-to-fluidic valve and pressure/flow regulator and method of making same.. Univ Leland Stanford Junior, March 30, 1988: EP0261972-A2 (123 worldwide citation)

There is disclosed herein an apparatus for converting control signals of an electrical or optical nature or any other type of signal which may be converted to a change of temperature of a fixed volume of material trapped in a chamber to flexure of a membrane forming one wall of the chamber. Typicall ...


2
Derek P Dotson: Control system for fluid-filled beds. Angel Echevarria Co, Henry M Bissell, June 4, 1991: US05020176 (109 worldwide citation)

A system for automatically controlling the pressure maintained in a plurality of fluid-filled cylinders supporting a sleep surface in order to maintain a desired degree of firmness/softness. In one mode, the system permits the user to set the desired level of firmness and then the system acts to mai ...


3
Chang H Lee, Young J Kim: Automatic mixing faucet. Pasquale A Razzano, December 24, 1991: US05074520 (95 worldwide citation)

An automatic faucet is disclosed which includes a faucet body having a water discharge end and sensors mounted on the faucet for sensing the presence or absence of an object adjacent the faucet. A water supply valve is located in the faucet body which includes a diaphragm type primary valve to contr ...


4
Christian Beyer, Keith Trenton, Mariusch Gregor, Robert Stolle, Rudolph Bahnen, Anja Plugge, Heinz Frings, Karl Heinz Ronthaler, Dennis Smith, Jayesh Patel: Apparatus and method for regulating a pressure in a chamber. Applied Materials, Leybold Vacuum, Robert Kinberg, Michael A Sartori, Venable, August 31, 1999: US05944049 (90 worldwide citation)

A pressure for a chamber is regulated by controlling either the exhaust pressure at the exhaust side of a first vacuum pump or the internal pressure at a compression stage of the first vacuum pump, where the first vacuum pump is directly communicating with the chamber. The pressure of the chamber ca ...


5
Brian S Hilton: Valving connector and ink handling system for thermal ink-jet printbar. Xerox Corporation, Oliff & Berridge, November 25, 1997: US05691753 (74 worldwide citation)

A valving connector used in a thermal ink-jet printer for filling and draining ink from a manifold of the printbar. The valving connector has two positions depending on the operation of the printer. In the first position, the top portion of the manifold is filled with air, and the bottom portion of ...


6
John A Bihlmaier: Pneumatic-hydraulic actuator system. Lyon & Lyon, June 22, 1982: US04335867 (70 worldwide citation)

An actuator system is disclosed which modulates a linear output shaft associated with a working control valve or the like in response to a control signal input. The system includes a feedback control link, a pneumatic positioner, a pneumatically controlled hydraulic valving system and a hydraulic cy ...


7
Tung Po Tsai: Multi-operation discharge control device. February 1, 2000: US06019343 (68 worldwide citation)

A multi-operation discharge control device is provided, the device includes a lower housing having a water inlet and outlet, a valve set slidably and axially disposed in the upper portion of the lower housing, a manual operation system slidably and transversely disposed into a lateral extension oppo ...


8
Steven G Streich: Indexing automatic fill-up float valve. Halliburton Company, John H Tregoning, James R Duzan, January 10, 1978: US04067358 (64 worldwide citation)

A valve for repetitively allowing and preventing upward fluid flow through a casing string. The valve is convertible from a locked open position permitting reverse upward fluid flow therethrough to a check valve position preventing upward fluid flow therethrough by flowing fluid downwardly through t ...


9
John R Wilson, Natan E Parsons: Flush valve assembly with flex tube. Sloan Valve Company, Cook Alex McFarron Manzo Cummings & Mehler, May 7, 2002: US06382586 (63 worldwide citation)

A toilet room flush valve includes a body having an inlet and an outlet. There is a valve seat between the inlet and outlet and a valve assembly is movable within the body and positioned to close upon the seat to control flow from the inlet to the outlet. A cover is mounted upon the body and defines ...


10
Benjamin P Nutter: Pressure controlled reversing valve. Schlumberger Technology Corporation, David L Moseley, William R Sherman, Stewart F Moore, October 19, 1976: US03986554 (63 worldwide citation)

In accordance with an illustrative embodiment of the present invention, a pressure controlled reversing valve includes a housing having a flow passage and ports to communicate the passage with the well annulus outside the housing, valve means for normally closing said ports, valve operator means mov ...