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Document Title |
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8157243 |
Insert molded evacuation valve
An evacuation valve for a metering device for a liquid medium is disclosed. The valve includes a seal holder having a chamber formed therein and a seal. An elastomeric material fills the chamber to...
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8104264 |
Low minimum impulse bit propellant gas thruster
A gas thruster is configured to supply thrust over a relatively wide range, from a relatively low value to a relatively high thrust value, and exhibits relatively fine minimum impulse bit (MIB)...
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7905467 |
Dual position pilot operated valve assembly
A dual position pilot operated valve assembly having a main piston, with a valve member, reciprocable within a valve body, wherein the valve body is adapted for sealingly mating with a valve seat...
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7823633 |
Valve apparatus
A valve apparatus for controlling fluid flow between a fluid passage and a fluid delivery conduit therein includes a valve housing having first and second housing ports spaced therealong, and a...
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7735513 |
Diaphragm valve with electronic pressure detection
A flush valve for a waste water system comprises a valve including a fluid inlet, a fluid outlet and a main valve element adapted for movement to allow fluid flow between the fluid inlet and the...
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7677527 |
Dual position pilot operated valve assembly
A dual position pilot operated valve assembly having a main piston, with a valve member, reciprocable within a valve body, wherein the valve body is adapted for sealingly mating with a valve seat...
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7643909 |
Highly responsive master-slave valve positioning
A master valve and at least one slave valve are connected via a network, wherein upon broadcast of a position setpoint of the master valve the at least one slave valve achieves a corresponding...
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7600737 |
Cutback poppet valve
A valve includes a valve body and a free floating poppet. The valve body includes an inlet, an outlet, and a fluid flow passage therebetween. The free floating poppet is disposed in the valve body,...
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7517376 |
Reverse pulse cleaning of filter elements
An air supply system and valve is disclosed which provides a reverse pulse of air for cleaning a filter element located in a filter house. A valve is also disclosed for use in the air supply...
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7384022 |
Seal arrangement for a piston valve
A sliding seal arrangement in particular for a valve having an anodised aluminium coating in contact with the seal. The coating is produced so that inclusions in the surface of the coating are...
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7357367 |
Embedded high temperature valve
A high temperature valve for controlling gas flow includes an outer vessel, a valve housing, and a valve element. The valve housing is disposed at least partially within, and is at least partially...
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7325781 |
Automatic bathroom flushers with modular design
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the...
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6962318 |
Pulsed input shutoff valve
Methods and devices for shutting off flow in fluid lines by an automated remote sensor signal, when leakage is detected, are disclosed. A shutoff valve has an inlet for connection to the upstream...
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6908277 |
Speed governor for a pneumatic rotation motor
A speed governor for a pneumatic rotation motor having a pressure air inlet passage (15, 15′), an inlet valve (16; 56) including a flow controlling valve element (18; 58) located in the inlet p...
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6830229 |
Two-stage valve suitable as high-flow high-pressure microvalve
A two-stage valve for controlling the flow of fluid from a pressurized fluid supply with an upper main body including a cavity with a contoured inner surface; a lower main body with at least one...
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6805328 |
Shut-off valve apparatus
A shut-off valve apparatus has a valve body and a valve member coupled to the valve body. The valve member is movable between a first position blocking material flow through the valve body and a...
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6736093 |
Device for controlling at least one gas-changing of an internal combustion engine
A device for controlling at least one gas-changing valve (10) of an internal combustion engine includes a valve adjuster (20) with an adjusting piston (16) limiting two pressure chamber (17, 18)....
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6666277 |
Low pressure pneumatic and gate actuator
A pneumatic actuator having AND gate logic characteristics is disclosed. The actuator has three chambers each divided into two chamber portions by respective flexible diaphragms. One of the...
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6644351 |
Booster pilot valve
A booster pilot valve operable at ultra low power levels is provided. The booster valve includes a moveable spool capable of directing a fluid flow to at least two different paths. The booster...
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6612536 |
Remote shut-off valve
This invention relates to a remote shut-off valve, and in particular to a valve for the remote shutting-off of a fluid such as a main water supply. The remote shut-off valve comprises a diaphragm...
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6575186 |
Multiple speed slit valve controller
Described is a system designed to control the slit valve used to isolate chambers in cluster tools used in integrated circuit (IC) fabrication. This method changes the slit valve door actuator...
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6536533 |
Low pressure actuator for dry sprinkler system
Embodiments of a low-pressure actuator, for use in a dry, low-pressure, pressurized gas, liquid fire control and suppression sprinkler system, with a pneumatic/electric double interlock mechanism,...
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6520157 |
High-pressure injector with reduced leakage
The invention relates to an injector for an injection system for injecting highly pressurized fuel into the combustion chambers of internal combustion engines. An inlet from the high-pressure...
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6427967 |
Valve, unit, assembly and system
The invention relates to a valve incorporating a flexible diaphragm, and improves upon known diaphragm valves to permit the use of a diaphragm-controlled valve in systems for which such valves were...
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6349686 |
Hydraulically-driven valve and hydraulic system using same
In a hydraulically actuated gas exchange valve, the initiation and termination of gas exchange is achieved with a hydraulically driven valve that functions by opening an actuation fluid passage to...
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6244561 |
Modulating expansion valve
An improved modulating expansion valve includes a housing having a high pressure side, a low pressure side and a piston reciprocally mounted in a portion positioned centrally therebetween. A...
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6227247 |
Position driven hot gas proportional thruster valve
A thruster valve has a continuously positionable piston between a closed position and a maximum open position. The piston moves in response to the difference in pressure between the pressure in the...
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6029693 |
Valve driving apparatus
A valve driving apparatus for actuating a shutoff valve or a dump valve provided in a pipeline for conveying a gaseous or liquid substance. The valve driving apparatus is constructed by disposing a...
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6024114 |
Solenoid pilot operated air activated piston driven double seat accumulator drain valve
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6010112 |
Driving device for a shut-off device in a pipe-line
A driving device for a shut-off device in a pipe-line includes a piston/cylinder unit able to be connected to a slide valve plate of the shut-off device. A working chamber of the unit is connected...
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5996965 |
Solenoid valve
A solenoid valve especially intended for wet-room fittings. It has a housing with an intake and an outlet sealed off from each other and prevented from communicating while the valve is closed by a...
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5979863 |
Irrigation control valve and screen
A control valve comprises a housing having an inlet for connecting to a source of water and an outlet, a pressure responsive diaphragm valve assembly including a valve disc having a front face and...
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5954311 |
Low power pilot valve actuated by transverse or perpendicular action
A valve (1, 2) of the kind that is caused to open and close in consequence of the opening and closing of a bleed orifice (15) by a movable pilot valve element (3, 4, 5), characterised in that said...
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5954080 |
Gated proportional flow control valve with low flow control
A gated proportional control valve is disclosed which allows both high-flow proportional dispensing and precision low flow. The design includes one or more controlled diameter and controlled-shape...
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5853026 |
Valve with downstream manual bleed
A valve for controlling the flow of a liquid includes a valve seat which is engaged by a selectively operable valve member. A pressure chamber above the valve member contains upstream pressurized...
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5810325 |
Microvalve
A microvalve incorporating the invention includes a valve plate with a planar base and an extending pedestal, the pedestal having an upper valve surface. The planar base is enclosed by a rim which...
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5749559 |
Device for controlling a spacecraft by gating gas via a moving nozzle
A device for controlling a spacecraft by gating gas, the device comprising a nozzle, a gas feed duct, a gate having a seat and a plunger interposed between the feed duct and the nozzle, and control...
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5746245 |
Meters
The meter 2, e.g. a gas meter includes an inlet boss 4 providing an unregulated supply of gas via a valve means 8 which regulates the flow of gas as it passes into a chamber 6. The valve means 8...
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5725197 |
Mains pressure flusher valve
A mains pressure valve including a main chamber having an inlet chamber for fluid and an outlet for fluid, a non-return valve located downstream of the outlet and adapted to provide resistance to...
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5628491 |
Pilot valve
A pilot valve for controlling a pneumatically actuated main valve of a milking-system pulsator, has an electromagnet that it is alternately energized and de-energized displacing an armature back...
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5549273 |
Electrically operated faucet including sensing means
An electronically operated assembly to be used in conjunction with water faucets is provided with a sensor that senses the presence of objects such as human hands and automatically starts the flow...
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5533706 |
Valve arrangement
A valve arrangement includes a valve housing having a circular cylindrical portion in which is formed a valve chamber, a control valve and a valve member. The valve chamber has an inlet adapted to...
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5524862 |
Mixer valves with electronic control
The present invention pertains to a mixer valve with electronic control, which incorporates a group of valves (27) arranged in a housing (26) provided in the valve body axially to the coupling (22)...
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5476245 |
Pressure-compensated solenoid valve
In a pressure-compensated solenoid valve disposed in a passage for controlling communication therethrough a central valve housing part which includes a guide bore with an increased-diameter end...
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5464064 |
Valve particularly useful in fire extinguishing systems
This disclosure relates to a valve including a valve member having: a predetermined surface area on its inlet side exposed to the inlet pressure to produce a force tending to move the valve member...
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5456279 |
Diaphragm-type pilot valve having a self-cleaning control orifice
A reaming pin (70) is provided in a control orifice (34) by which pressure from a main chamber (26) is communicated to a control chamber (36) so as to provide force to hold a main valve member in...
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5431181 |
Automatic valve assembly
A valve assembly is disclosed which is adapted to fit existing valve bodies. A flexible diaphragm assembly positioned within the valve body seals against a cylindrical barrel of the valve body. A...
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5366202 |
Displacement controlled hydraulic proportional valve
A displacement controlled hydraulic proportional valve is provided with a dashpot disposed between a main valve spool and a pilot valve spool to stabilize the proportional valve. The dashpot...
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5363873 |
Anti-clog water valve
A household appliance, solenoid controlled, pilot actuated inlet water valve has a diaphragm insert with a bleed valve that substantially closes when a main valve is open to reduce water and...
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5362026 |
Water flow control system
A battery-operated flushing system (10) comprises a flushing valve (34) of the pilot-operated self-closing type having a pressure chamber (46) connected to a pilot conduit (52) controlled by a...
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