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7617839 |
Constant flow valve
A regulating valve includes an outer housing comprised of a cap joined to a base. The housing is internally subdivided by a barrier wall into a head section and a base section, the latter being...
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7520291 |
Pressure-compensated, subsea chemical injection valve
A backpressure-protected valve suitable for subsea well treatment chemical injection applications includes an improved gate valve, a check valve and a pressure compensator responsive to ambient...
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7458390 |
Breath controlled air inlet for blower
The present invention relates to a breath controlled air inlet valve for controlling a flow of air supplied to a wearer of a facemask, the valve permitting the flow of air when a wearer breathes in...
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7431047 |
Device for underpressure-activated dispensing of fluids
The present invention regards an underpressure-activated valve mechanism for controlled dispensing of fluids, including liquid food articles, from a receptacle. When the user applies sufficient...
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7401372 |
Swimming pool cleaning apparatus
A submersible cleaner includes a valve within a flow passage for interrupting fluid flow and thus drive the cleaned over submerged surfaces to be cleaned. An element moveable between the valve and...
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7363938 |
Constant flow valve assembly
A dual valve assembly includes two regulating valves. Each valve includes an outer housing comprised of a cap joined to a base. The housing is internally subdivided by a barrier wall into a head...
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7353834 |
Variable rate pressure regulator
A pressure regulator valve including a valve seat separating a fluid flowpath into an upstream region and a downstream region. A valve closure member is mounted on a valve stem, the valve stem...
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7347206 |
Control group of a second-stage regulator for scuba divers
A group for controlling a second-stage regulator for scuba divers. The regulator comprises a regulator body with an inlet conduit for connection to a first-stage regulator which supplies a...
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7302961 |
Surge relief valve
A surge relief valve comprising a main valve body having a dome port and an inlet port. The inlet port is in fluid communication with a first fluid. The invention further includes a dome reservoir...
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7216668 |
Interruption valve with automatic reset
A fluid valve ( 10 ) that interrupts the flow of fluid when backpressure ceases. The valve ( 10 ) consists of a valve body ( 20 ) having an inlet ( 22 ), an outlet ( 24 ), a piston chamber ( 32 ),...
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7171980 |
Springless regulator valve assembly
A valve assembly and a regulator for use therein are disclosed. The valve assembly includes a valve poppet having a first end having a first face and a second end having a second face. The first...
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7159263 |
Flexible plate for swimming pool suction cleaner
A submersible cleaner includes a valve within a flow passage for interrupting fluid flow and thus drive the cleaned over submerged surfaces to be cleaned. A retractable element moveable between the...
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7150825 |
Sealing apparatus of fuel filter
A fuel filter sealing apparatus to improve a connector for connecting a fuel input pipe and a fuel return pipe to a fuel filter in order to prevent fuel leakage during a preliminary testing stage...
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7117887 |
Quick fill device
An apparatus is adapted to be secured to a pressure regulator, relief valve, or any other valve and allows the user to control the position of the valve. According to one embodiment, the pressure...
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7059325 |
Vent assembly
A vent valve apparatus ( 10 ) for use with a system for supplying breathable gas pressurised above atmospheric pressure to a human or animal. The apparatus ( 10 ) includes a gas washout vent ( 15...
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6994928 |
System and method for regulating steam pressure in a fuel cell system
A system and method for regulating steam pressure. The system includes a steam source, a reformer, and a pressure regulator. The reformer includes an inlet that is in fluid communication with a...
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6959724 |
Multiple regulator vacuum delivery valve assembly
This invention is directed to an apparatus for controlling the discharge of pressurized fluids from the outlet of a pressurized vessel, and particularly directed to multiple fluid regulating...
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6957660 |
Pressure relief valve with bidirectional damping
A pressure relief valve has a valve element that is biased by a spring into a closed position. A pressure being controlled is applied to the valve element to counter the force of the spring. When...
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6948481 |
Electrical connections for an integrated pressure management apparatus
An apparatus, system and method of establishing a threshold for a leak detection test that is performed on a headspace of a fuel system. A fuel vapor pressure management apparatus includes a...
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6945272 |
Passively actuated valve
A passively actuated valve for isolating a high pressure zone from a low pressure zone and discontinuing the isolation when the pressure in the high pressure zone drops below a preset threshold. If...
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6931859 |
Variable turbine cooling flow system
Cooling air to the blades and disks of a gas turbine may be modulated to provide a variable turbine cooling flow. A bellows may be extended by providing a high pressure compressor discharge flow to...
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6889692 |
Vent valve assembly
A vent valve apparatus for use with a system for supplying breathable gas pressurized above atmospheric pressure to a human or animal includes a gas washout vent, a vent valve adapted to...
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6789559 |
Pressure regulator
A fluid pressure regulator is provided having a housing with an inlet and outlet for fluid, a valve located movably inside the housing and provided with a fluid transport member to allow passage of...
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6786208 |
Boost fuel enricher
The boost fuel enricher is used with internal combustion engines, either carbureted or fuel-injected, that are equipped with compressors, i.e., turbocharged or supercharged, in order to enrich the...
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6725879 |
Apparatus for regulating steam pressure in a fuel cell system
A steam pressure regulator for a reformer of a fuel cell system. The reformer includes an inlet in fluid communication with a steam source, and an outlet that provides a supply of hydrogen gas. The...
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6718998 |
Apparatus and method for dissipating heat in a steam pressure regulator for a fuel cell system
An apparatus and method for dissipating heat from a steam pressure regulator for a reformer of a fuel cell system. The reformer including an inlet in fluid communication with a steam source, and an...
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6681418 |
Water flow control device
A water flow control valve ( 10 ) designed to be installed externally on a toilet tank ( 108 ) or as an integral element of a toilet ballcock ( 110 ). The valve ( 10 ) incorporates a diaphragm ( 46...
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6668853 |
Pressure relief valve with field-replaceable high corrosion-resistant components
A pressure relief valve has a gasketed main body fastened to a vessel wall adjacent to a vent port, the body having a recess surrounding the port which receives a plastic insert removably coupled...
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6651696 |
Relief valve
A relief valve with two outlet ports increases the flow capacity of the valve when open. In an alternative embodiment, a relief valve with two outlet ports also has at least two springs stacked...
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6648011 |
Vacuum demand valve
A vacuum demand valve for delivering a flowable material is disclosed. The valve has a housing having a proximal end, a distal end, an intermediate segment therebetween defining a passageway...
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6640830 |
Pilot operated pressure valve
A pilot operated pressure valve which limits the rate of start-up pressure rise (“soft start-up”) and substantially eliminates excessive system pressure spikes. The valve includes an inlet, a...
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6557555 |
Vent valve apparatus
A vent valve apparatus for use with a system for supplying breathable gas pressurized above atmospheric pressure to a human or animal includes a gas washout vent, a vent valve adapted to...
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6502560 |
Integrated pressure management apparatus having electronic control circuit
An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the headspace in a fuel...
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6470908 |
Pressure operable device for an integrated pressure management apparatus
A pressure operable device for an integrated pressure management apparatus. The pressure operable device includes a poppet moving between a first configuration permitting fluid communication...
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6450153 |
Integrated pressure management apparatus providing an on-board diagnostic
An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the headspace in a fuel...
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6431197 |
Regulator valve for escape slide
A system for controlling with safety the transfer or control of high pressure fluids from a container for use as to an inflatable escape slide. The pressurized container houses valve mechanisms...
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6425410 |
High impact type gate pressure release valve
An inline high pressure fluid release valve is formed by a valve body having a transverse opening forming a fluid passageway interposed in a fluid conductor. A vertically moveable plunger in the...
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6415815 |
Pressure relief valve
A pressure relief valve for relieving excess pressure in a fluid distribution system comprising a valve body having an inlet port and an outlet port in communication with an interior of the valve...
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6173741 |
Pressure compensating valve for a fuel tank
A pressure compensating valve is configured as a pressure control valve for a fuel tank. The valve body is operatively connected to a membrane via a two-arm valve lever so that, when there is an...
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6173736 |
Diaphragm actuated pressure relief valve with pressure balanced outlet and fail-safe operation
A diaphragm/spring operated pressure relief valve having a sensing passage of substantially the same flow area as the outlet orifice of the valve whereby failure of either diaphragm results in...
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6119722 |
Pilot operated pressure valve
A pilot operated pressure valve which limits the rate of pressure rise and substantially eliminates excessive system pressure spikes, the valve including an inlet, a hollow cylindrical main body...
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6116270 |
Piston valve
A piston valve wherein a hollow piston type sleeve has a closed lower end surmounted by a sleeve which has a cylindrical outer surface which slides, and seals against a blank inner cylindrical...
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6109027 |
Exhaust restriction device
An exhaust restriction device for an internal combustion engine is disclosed. The exhaust restriction device includes a main valve and a bypass valve for restricting the flow of exhaust gas. The...
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6099264 |
Pump controller
In accordance with the present invention, there is provided an in-line fluid pump controller for activating and de-activating a fluid pump which is configured to pump fluid through a fluid line....
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6076798 |
Fluid actuating valve
The present invention relates to a fluid actuating valve, wherein the valve body (1) comprises a longitudinal tubular body (11) and a transversal cylinder body (12), the longitudinal tubular body...
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5996616 |
Reduction and control valve
The present invention pertains to a dual-function hydraulic valve (1), i.e., a control valve and a pressure reduction or limitation valve at the same time. The inventive combined hydraulic valve...
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5979869 |
Valve
The invention relates to a valve with a piston which is movable to and fro in a housing between an open and a closed position, wherein the piston has a first contact zone which in the closed...
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5941276 |
Starting valve
The invention relates to a starting valve for progressive build-up of pressure in an installation through which pressure medium flows, in which a piston is movable to and fro in a housing between a...
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5937895 |
Fail-safe delivery valve for pressurized tanks
The present invention uses a regulator in the form of dispensing check valve and a flow restriction arrangement to provide a virtually fail safe system for preventing hazardous discharge of fluid...
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5931187 |
Valve system for restarting oscillating controller
A valve system for starting/restarting an oscillating controller of the type that uses a source of pressurized gas to provide controlled pulses of the pressurized gas to a pump, such as a chemical...
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