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Match Document Document Title
7398795 Excess flow valve  
An excess flow valve includes: a valve that opens and closes a flow path; a solenoid that keeps the valve in an opened state; a pressure detector detecting the primary-side pressure of the valve;...
7380567 Safety valve assembly having reset mechanism  
A valve assembly includes an excess flow shut-off mechanism for controlling flow between an inlet and an outlet of the assembly. The excess flow shut-off mechanism is adapted to automatically stop...
7380565 Spill prevention system with safety valves  
The present invention is for a spill prevention system to prevent fuel spills from a connecting line connecting duel fuel tanks on a truck when the connecting line is severed or detached from one...
7360555 Gas regulator with altimetric adjustment  
The invention relates to a gas regulator which is intended to be mounted on a gas delivery pipe connecting a gas source to a user device. The inventive regulator comprises a pressure regulation...
7343927 Blocking element, especially an explosion protection valve  
A closing body ( 3 ) which is mounted in a housing ( 2 ) in such a way that it can be axially displaced and can be pressed out of an opening position against a valve seat ( 4 ) into a closing...
7326186 Injector system and fluid control device providing sharp bolus injection  
An injector system includes a source of injection fluid, a pump device, a fluid path set disposed between the source of injection fluid and the pump device, and a fluid control device operatively...
7306008 Water leak detection and prevention systems and methods  
Water leak detection and prevention systems and methods in which water is only delivered to the water pipes in the building when a faucet or appliance demands water and water is delivered through a...
7299819 Water flow sensor alone and in combination with a method and apparatus for selectively shutting off the flow of water to a building  
Embodiments disclosed herein relate in part to water flow sensors, and also to such water flow sensors in combination with a system used to selectively shut off the flow of water through a water...
7299814 Method and apparatus for selectively shutting off the flow of water to a building  
Embodiments disclosed herein relates in part to selectively shutting off the flow of water through a water supply pipe to a building, such as in the event of a broken water pipe. The embodiments...
7273062 Shut-off valve for preventing the flow of liquid through a conduit, and related processes  
A shut-off valve for preventing the flow of liquid through a conduit is described herein. The valve includes a valve body which defines a fluid passage, a portion of which can be venturi-shaped....
7258131 Safety valve  
The invention is for a safety valve for a piping system. The safety valve has a cylindrical housing, a piston assembly with two disc-shaped pistons, each piston having at least one orifice defined...
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...
7140386 Surge suppression and safety cut-off valve  
A surge suppressor and safety shut-off valve is described which automatically shuts off fluid flow in response to a sufficient pressure differential across the valve. The shut-off valve comprises a...
7114512 Gas safety device  
A gas safety valve includes a main body having a longitudinal through-hole consisting of a first section, a second section, and a third section with different inner diameters. A ball and a...
7111638 Excess flow shutoff  
A flexible connector incorporates an excess flow shutoff at its inlet to prevent uncontrolled flow in the event of a failure such as rupture or separation of the connector. A shutoff sleeve moves...
7089959 Timing regulator for outdoor gas apparatus  
A timing regulator, having an operation temperature of the timing regulator from −40° C. to 55° C., includes a valve body which has a gas discharging end for connecting to an outdoor gas...
6988509 Riser line shutoff valve  
The riser line shutoff valve where oxygen flows into the valve from the inlet and through an orifice in the piston. This orifice creates differential pressure between the upstream and downstream...
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...
6929237 Valve actuation system and methods for pipeline valves  
The invention is therefore directed to a rotary valve actuating system coupled to a pipeline for a pressurized fluid, the actuating system being coupled to the rotary valve to selectively cause...
6907898 Fluid shutoff apparatus  
A fluid shutoff apparatus utilizes a float [ 121 ] of a float chamber [ 115 ] connected to a float-operated valve [ 113 ] to provide positive shutoff of fluid to a downstream load upon excessive...
6895994 Self-operated protection device for pipeline  
A protection device which is capable of cutting off a pipeline when the pipeline leaks due to the rupture of the pipe self-operatedly closes the pipeline using fluid kinetic energy. A control rod...
6837271 Liquid flow control valve  
A liquid flow control valve has a valve body 10 in which is mounted a valve member 41 moveable between valve open and closed positions. A turbine 15 senses liquid flow through the valve body ...
6820633 Thermally-sensitive safety device for gas tubing  
The present invention is to provide a thermally-sensitive safety device for gas tubing including a main body provided with an inlet, an outlet and a gas passage communicated with said inlet and...
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...
6708722 Water flow control system  
An adjustable timing system controlled by a water meter indicator activates an electric shut-off valve at a main water supply to a building or apartment unit if a continuous flow of water exceeds...
6694997 Enhanced and remote meter reading with vibration actuated valve  
An automatically actuated regulation system for a natural gas pipeline having flow control unit, a vibration sensor, a gas flow meter, a trigger unit, and a microprocessor. The microprocessor...
6656254 Full flow mechanical failsafe  
A full-flow mechanical failsafe ( 100 ) is composed of a cylindrical shell ( 101 ) having a movable sealing plug ( 105 ) therein, for attachment to a filter element ( 110 ) of a fluid filtering...
6655259 Full flow mechanical fail safe  
A full-flow mechanical failsafe is composed of a cylindrical shell having a movable sealing plug therein, for attachment to a reaction tube of a fluid treatment system, such as a gas clean up...
6634373 Method and equipment concerning pressure deliverance system for gas or liquid  
A main water supply ( 1 ) is equipped with a main valve ( 2 ) followed by a first main pipe ( 3 ) running through a first check valve ( 4 ), and further to a first adapter ( 6 ) while a pilot pipe...
6601608 Suction device attachment with a suction channel  
The invention relates to a suction device attachment ( 1 ) comprising a suction channel ( 5 ), whereby a component ( 9 ) whose insertion is to be monitored is disposed in said suction channel. A...
6595230 Non-refillable valve for a gas cylinder  
A non-refillable valve in a compressed gas cylinder to prevent the refilling of the cylinder after depletion of compressed gas initially in the cylinder. The non-refillable valve comprises a valve...
6581629 Fluid-activatable device for shut-off under excess flow conditions  
A fluid-activatable shut-off device, configured as a shut-off valve, has a valve housing formed with a flow passage therethrough and a movably supported valve body, which is movable between an open...
6543474 Pressure equalizing check valve  
A flapper-type anti-siphoning check valve for a domestic water system has an auxiliary valve built into the flapper. The auxiliary valve permits slow reverse flow of water through the check valve...
6513545 Safety valve with adjustable maximum flow shut off mechanism  
A flow shut off valve for use with a pressurized fluid application and which is actuated in response to a flow rate exceeding a maximum allowable rating, the fluid application including a normally...
6488047 Excess flow valve  
A number of improved excess flow valves are disclosed wherein the flow around a magnet holding portion of the valve body is generally unrestricted to reduce the pressure drop across the valve. The...
6443180 Hydraulic line adjustable velocity fuse with damping  
A velocity fuse for a hydraulic line shuts off fluid flow when the flow rate exceeds a preset flow value. The shut off value may be adjusted while the fuse is mounted in the hydraulic circuit. A...
6409142 Pipe breakage control valve device  
An input/output port 1 of a hose rupture control valve unit 100 is attached to a bottom port of a hydraulic cylinder 102 , and an input/output port 2 is connected to one of actuator ports of...
6401741 Excess flow shut-off valve  
An excess flow shut-off valve has a body with a flow passageway therethrough. A closure ball is rotatably supported within the body and has a flow passageway therethrough. The ball has a first...
6390199 Downhole safety valve  
A safety valve for use in a wellbore formed in an earth formation, comprising a valve body having a fluid passage for passage of a stream of hydrocarbon fluid flowing from the earth formation via...
6374846 System for excercising the control valve for a water shut-off valve  
A water shut-off valve assembly comprises a valve that is moveable by a motor between open and closed positions. The water shut-off valve assembly is adapted to be connected to a water line. A...
6345641 Fluid-activatable device for shut-off under excess flow conditions  
A fluid-activatable shut-off device, configured as a shut-off valve, has a valve housing formed with a flow passage therethrough and a movably supported valve body, which is movable between an open...
6308730 Gas stream monitor  
A gas stream monitor shall be provided that facilitates the adjustment of the reseat flow. The gas stream monitor consists of a gas-tight casing whose interior is equipped with a seat for a reseat...
6293307 Valve assembly with check valve for gas cylinder  
A cylinder (32) is hermetically attached into an attaching bore (31) formed within a housing (4) and is made to advance and retreat between a take-out position (A) and a charging position (B). A...
6241212 Hose rupture control valve unit  
A hose rupture control valve unit includes a housing provided with two input/output ports. One input/output port is directly attached to a bottom port of a hydraulic cylinder, and the other...
6216727 Water flow sensing device  
A water flow-sensing device includes an assembly with a stationary metering rod with a cylindrical portion and a conical portion and a relatively moveable element in the shape of a hollow...
6209576 Automatic fluid flow shut-off device  
An automatic fluid shut-off device for interrupting fluid flow through a fluid supply path in a fluid delivery system. The automatic fluid shut-off device includes: a fluid flow sensor structured...
6202678 Gas discriminating valve for shutting off excessive flow of liquids  
The present invention is a valve that shuts off only upon excess flow of liquid. A ball is seated within a ball holder. The ball holder has a circumferential side wall. An inlet orifice and one or...
6173734 Leak arresting mechanical flow control valve  
A mechanical leak arresting valve is disclosed in which fluid through the valve is limited to a range between a predetermined minimum flow rate and a predetermined maximum flow rate, and where both...
6155285 Gas safety valve  
A gas safety valve includes a main body having a longitudinal through hole that defines a gas passage. A ball is moved to a position blocking the gas passage when a sudden pressure drop occurs in...
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...
Matches 1 - 50 out of 398 1 2 3 4 5 6 7 8 >