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8353310 |
Valves having removable internal actuation mechanisms
Internal valve apparatus are described. An example internal valve includes a body having a valve seat disposed between an inlet and an outlet. A flow control member operatively coupled to the body...
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8327872 |
Apparatus for connecting an external water feed line to an internal water line of a washing machine
An apparatus is provided for connecting an external water feed line to an internal water line of a laundry care household appliance. The apparatus has a housing in which one end of an external...
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8262057 |
Flow controlled actuator apparatus for use with self-closing stop valves
An apparatus for operating a device such as a self-closing internal valve is disclosed. The apparatus includes a housing assembly having an internal chamber, a fluid inlet in fluid communication...
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8251082 |
Dual valve method and apparatus for limiting toilet water flow
A dual valve assembly for limiting flow into a toilet tank comprises a fill valve, such as a float valve or ball cock valve, and a piston valve positioned between a water supply line and the fill...
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8225812 |
Slam shut safety device
A safety device for a gas distribution system includes a valve body, an upper casing attached to the valve body, the upper casing housing two springs. The two springs are co-axially located and...
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8166996 |
Toilet bowl overflow prevention and water conservation system and method
A system and method for conditionally interfering with the operation of a conventional toilet tank fill valve prevents toilet overflow and conserves water. A single self-contained apparatus,...
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8166998 |
Multiple valve assembly for reducing water loss from a leak
A valve assembly for reducing water loss from a leak from a water device. The valve assembly includes a first passage through which water flows from a water source to the water device and a second...
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8113232 |
Flood prevention system and associated method
A water flow control system for regulating water traveling through an existing water supply line preferably includes a housing connected to an existing water line. A user interface may be coupled...
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8100141 |
Water supply control assembly with automatic shut-off and duty cycle reset
A water supply control assembly is disclosed for cutting off the supply of water to a house or building in the event of excessive water consumption. In one embodiment, a valve is secured to a...
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8047224 |
Cartridge insert valve
The present invention is for a cartridge insert valve to limit excess flow through a pipe which is part of a piping system. The cartridge insert valve includes a cylindrical housing and an inlet...
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8020582 |
Excess flow valve
An excess flow valve having a housing, a valve seat, a poppet and an adjusting ring. The adjusting ring lies within a bore in the housing and there is an opening through the housing permitting...
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7987870 |
Overpressure protection device and connection subassembly comprising same
The invention relates to a protection device which defines a through hole (21) for the passage of a fluid which may be under overpressure conditions. In addition, the inventive device comprises: a...
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7900647 |
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...
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7845369 |
Volumetric-controlled smart valve
A volumetric metering smart valve shuts down automatically when a certain amount of liquid has passed through the valve. This valve has a water wheel which is rotated by the liquid and which drives...
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7806132 |
Method and device for tapping a pipeline
A method and device is provided for tapping an existing primary pipeline (e.g., a water supply line) without cutting the existing primary pipeline. A secondary supply line may be installed by...
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7779852 |
Water conservation safety shut-off valve
The present invention is a water conservation safety shut-off valve assembly for use on locations which normally have intermittent water usage but need to indicate when there is constant water...
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7757708 |
Toilet bowl overflow prevention and water conservation system and method
A system and method for conditionally interfering with the operation of a conventional toilet tank fill valve prevents toilet overflow and conserves water. A controller connected to a water level...
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7743786 |
Irrigation system and shut-off control device therefor
An irrigation system having at least one water distribution member, a water supply source and a horizontally oriented, shut-off control device located in a fluid flow line between a water supply...
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7658179 |
Fluid leak limiter
A fluid leak limiter for a high-pressure fuel injection system is disclosed. The fluid leak limiter may have a body at least partially defining a central bore with a fluid inlet and a fluid outlet,...
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7591282 |
Damped, self-cleaning flow shutoff valve and associated methods
The valve comprises a housing defining a flow passage, an outer cylindrical wall, an inner cylindrical wall, and a valve seat. An annular cavity is formed between the outer cylindrical wall and the...
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7552743 |
Self cleaning flow shutoff valve
A flow shut off valve for residential water line pressure includes a housing having an inlet, an outlet and a passage there between with a valve seat in the passage. A valve element is slidably...
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7533689 |
Excess flow control valve
A poppet mounted concentrically on a barrel for axial travel downstream relative thereto from an open to closed position, the poppet biased by a coil sprint to its open position.
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7451777 |
Water conservation safety shut-off valve
The present invention is a water conservation safety shut-off valve assembly for use on locations which normally have intermittent water usage but need to indicate when there is constant water...
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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;...
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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...
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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...
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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...
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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 position....
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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...
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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...
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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...
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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...
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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....
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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...
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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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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...
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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...
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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...
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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 app...
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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...
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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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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...
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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 flow...
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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...
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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 10 and...
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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...
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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 zone...
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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...
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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...
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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 system,...
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