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Document |
Document Title |
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7318556 |
Water line safety valve
A safety valve for a lawn sprinkler system having at least one subterranean flow line and at least one head for spraying irrigation water. The valve includes a tubular member connected between the...
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7293721 |
Check valve assembly for sprinkler head
A check valve assembly has a coupling sleeve with a first end for connection to a pop-up or fixed sprinkler head and a second end for connection to a water supply, the coupling sleeve incorporating...
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7270140 |
Poppet valve assembly
A poppet valve assembly is sized and constructed for insertion into the lower portion of a flow control valve used within the opening of a cylinder for storing a compressed gas. When the flow...
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7267136 |
Wet barrel fire hydrant flow preventer
The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water...
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7209806 |
Self-contained electronic pressure monitoring and shutdown device
The invention is a self-contained process shutdown device that detects abnormal pressures and initiates shutdown by removing the pneumatic or hydraulic pressure needed for a given process or flow...
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7156119 |
Hydrant knock-off combination flow stop and backflow check valve
A hydrant knock-off combination flow stop valve and backflow check valve, mountable between water system riser and a wet-type hydrant having a breakaway flange ring. The vertical valve has a...
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7152617 |
High pressure release safety valve assembly
A safety valve assembly for use with a global manual valve which is installed on a high pressure cylinder or container. The safety valve assembly has a main body that is threaded into the lower...
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7128083 |
Wet barrel fire hydrant flow preventer
The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water...
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7124770 |
Shear mechanism for backpressure relief in a choke valve
The present invention relates to a mechanism for preventing damage to the actuator of a hydraulic choke valve in the event of excessive backpressure on the outlet of the choke. The backpressure...
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7066193 |
Poppet shear protection apparatus and system
A springless shear protection device for use with a valve, the device comprising a poppet, the poppet including a bore. The poppet including first and second openings at distal ends of the poppet....
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7004189 |
Lubrication cutoff device
A connector in a network of lubrication pipes is provided with a valve that automatically closes off the connector whenever one of the pipes is withdrawn following an incident. Lubricant leaks are...
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6802332 |
Shear valve
A shear valve for use in a fuel delivery system includes a valve body wherein a first end is adapted to be connected to a fuel inlet, and a second oppositely-disposed end is adapted to be connected...
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6799597 |
Pressure control system which detects and abates overpressure and underpressure conditions in a pressurized fluid
Apparatus for detecting and abating an overpressure condition and an underpressure condition in a pressurized fluid. A collapsible buckling pin is supported between a valve assembly and a control...
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6799596 |
Breakaway safety shut-off valve
A breakaway safety shut-off valve including a valve housing and a detachable end portion connected thereto by a region of reduced strength. The housing includes an axial passage and the detachable...
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6789561 |
Excess-flow valve
An automatically operating valve for use for example in a forecourt fuel pump has a body ( 10 ) defining a flow passage ( 20 ) within which is formed a valve seat ( 22 ), the body having a weakened...
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6732808 |
Fire-extinguishing device
This invention relates to a fire extinguishing device, with at least one supply line ( 4 ) that is dry with the device in an idle state, through which at least one extinguishing nozzle ( 1 ) is...
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6698714 |
Fluid safety discharge system
A fluid safety discharge system for a relief valve having an inlet and an outlet includes a bushing frictionally engaging the relief valve outlet. The relief valve outlet is internally threaded for...
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6640824 |
Mud saver kelly valve
A mud saver valve is described that features an outer housing that retains upper and lower valve pistons therewithin. The pistons coordinate to provide a check valve so that fluid, such as drilling...
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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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6431196 |
Combination pressure relief device
A pressure relief device with a permanently attached rupture disk is disclosed. The pressure relief device includes a valve body. The valve body includes an inlet and an outlet defining a flow...
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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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6412811 |
Inflator
An apparatus ( 10 ) for helping to protect an occupant of a vehicle ( 12 ) that has a side structure ( 16 ) includes an inflatable vehicle occupant protection device ( 14 ). The inflatable vehicle...
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6398317 |
Hydraulic vehicle brake system with wheel slip control, and valve for such a brake system
The present invention relates to an automotive vehicle brake system with wheel slip control which is provided with a non-return valve, between a secondary and a primary circuit. Initially, both...
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6357465 |
Shipping cap for evacuation valve
A cap for use in a hydraulic control unit. The cap retains a poppet in a fill position within a sleeve. The cap has at least one body. The body has a retaining surface, for insertion into the...
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6321770 |
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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6263912 |
Fluid flow control valve
A fluid flow control valve within a pop-up sprinkler arrests fluid flow through a riser of the pop-up sprinkler under abnormal flow conditions, such as when the riser is broken or a sprinkler head...
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6263911 |
Fluid flow control valve
A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system,...
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6260575 |
Fluid flow control valve
A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system,...
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6227562 |
Stored gas inflator assembly
A safety apparatus (12) for helping to protect an occupant of a vehicle having a side structure (16) comprises an inflatable protection device (14) having an inflated condition disposed between the...
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6199584 |
Fluid flow control valve
A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system,...
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6178982 |
Shut-off valve for a sprinkler head
A shut-off valve interactive between a sprinkler head and a riser pipe, and adapted to stop water flow in the event the sprinkler head is inadvertently broken off, includes a coupling sleeve...
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6173767 |
Pressure release device for cooling coils
A pressure relief device mounts to heat exchange coils having fluid flowing therethrough. A base has an orifice formed therethrough extending through an orifice in the coil to the interior of the...
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6135134 |
Excess flow volume control valve
A shutoff valve assembly interposed in a fluid line for monitoring fluid flow volume and closing a fluid conductor, in the event of fluid flow volume above a predetermined value. The valve assembly...
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6112758 |
Gas line automatic shut-off assembly
A gas line shut-off assembly which is automatically actuated in the event of a catastrophic break of a gas line, wherein gas is retained safely inside the remaining intact portion of the gas line....
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6102060 |
Detachable locking device for a control valve and method
A valve device for use downhole is described as comprising a body member and a channel through the body member through which fluid can flow. A moveable member is mounted within the body member, and...
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6062247 |
One-piece shut-off valve
A one-piece polymer plastic shut-off valve that includes a conduit with a first end having a sealing surface thereon and an engagement surface for connection to a fluid system and a plug with a...
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6053194 |
Duckbilled check valves and methods of making and using same
Disclosed herein are closures that are formed via an injection molding process with a thin breakable web. When they are first placed in a fluid conduit and exposed to line pressure the web will...
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6000632 |
Pop-up sprinkler head with maintenance features
A pop-up sprinkler head is provided with a mechanism that shuts off the water when the nozzle portion of the riser is removed for maintenance. A stopper element reciprocally mounted in the riser...
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5957197 |
Downhole cut-off valve used for cementing
A downhole cut-off valve used for cementing a casing string, comprising: an outer hollow body, having a top end connected at the lower end of the casing string, an inner hole, an inner surface and...
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5941309 |
Actuating ball
The present invention relates to tools for use in wellbores which are actuated by means of actuating balls. The invention provides a method of actuating a tool located in a wellbore, the method...
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5941268 |
Tank safety valve
A tank safety valve which is used to seal off fluid or gas flow from the tank when an accident occurs. If the tank is damaged, such as by accidentally dropping the tank, it is most likely that the...
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5820162 |
Airbag system inflator
A spool valve controls the release of gas from a pressure vessel into an airbag upon the release of the gas in the event of a collision. The valve uses pilot pressure acting on either end of the...
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5810057 |
Pressure vessel fill protective device
A method and apparatus for preventing over-pressurization of vessel during filling with a fluid where temperature of the vessel would cause the fluid to flash or rapidly expand on contact. A shut...
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5799684 |
Frangible hydraulic fuse
A frangible hydraulic fuse includes a fitting secured to a sleeve by a plurality of frangible pins. In normal operation, hydraulic fluid flows through the fuse through radial ports of a sleeve to...
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5782259 |
Pressure relief valve
A pressure relief valve for a fluid pressure system having a pressure vent. A body is aligned with and in fluid communication with the pressure vent, the body terminating in a cylindrical portion...
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5758682 |
Safety shut off valve
A safety shut off valve has a tubular body with an axial guide therein. A poppet is secured to a shaft slidably supported by the axial guide. A tubular seat received within the tubular body has a...
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5706848 |
Heat exchanger pressure shutoff valve
An excessive fluid pressure safety valve for a fluid processing heat exchanger transferring thermal energy to fluids in the heat exchanger by piping extending through the heat exchanger is formed...
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5685329 |
Dual inline rupture pin release and reseating spring loaded relief valve
A toxic and corrosive fluid monitoring relief valve is formed by a valve body containing inline fluid pressure relief valves respectively opened in response to a first and a second fluid pressure....
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5618057 |
Continuously variable controlled orifice inflator
An air bag inflation which includes a gas source and a gas outlet opening for allowing flow of gas from the gas source into the air bag wherein the flow of gas is controlled with a valve assembly...
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5609359 |
Pintle controlled orifice inflator
An air bag inflator which includes a gas source and a gas outlet opening for allowing flow of gas from the gas source into the air bag wherein the flow of gas is controlled with a valve assembly...
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