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7353881 Ganged fire extinguisher system  
A non-electrically actuated ganged fire extinguisher system for use in an enclosure of a size larger than the capacity of a single pre-engineered fire extinguisher comprises at least two...
7337800 Automatic flushing system and method for a potable water station  
An automatic flushing system for a potable water station includes a conduit having a first end connected to a potable water supply source and a second end having a nozzle coupling. It also includes...
7185711 Fire protection system  
A fire suppression system includes system piping and at least one sprinkler with the system piping for delivering fire suppressant to the sprinkler. The sprinkler has an outlet and a temperature...
7017599 Thermal relief vent and method of manufacturing the same  
An improved thermal relief vent for a fuel tank, and a method of manufacturing the same, includes a thermal relief ring that is used to create a mechanical seal within the vent. The thermal relief...
6955226 Ganged fire extinguisher system  
A non-electrically actuated ganged fire extinguisher system for use in an enclosure of a size larger than the capacity of a single pre-engineered fire extinguisher comprises at least two...
6895987 Device that modifies irrigation schedules of existing irrigation controllers  
The present invention provides an irrigation control system in which a device (irrigation scheduler) automatically modifies irrigation schedules of installed irrigation controllers to affect...
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 ...
6763845 Water freeze prevention device  
An automatic water freeze prevention device having a first valve, second valve and third valve that cooperate to fill or drain a water utilization device according to pre-selected temperature...
6644337 Damper assembly having improved strength characteristics  
A damper assembly is provided having a fusible link assembly including an outer housing member and an inner channel member having side walls that are fused to the outer housing. A pair of damper...
6484742 Cartridge assembly for valve  
A cartridge assembly for a valve is disclosed. The cartridge assembly includes a cartridge containing an activation component. The cartridge and activation component are configured to be...
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...
6341616 Fire protection fluid relief valve  
A fluid pressure and heat sensitive valve connected with a flow line includes a collapsible pin, normally maintaining the valve closed, which collapses to open the valve in response to fluid...
6321768 Fluid flow shutdown and pressure relief valve with a fusable element  
A fluid pressure and heat sensitive flow control valve interposed in a flow line includes a collapsible pin, normally maintaining the valve open, which collapses to close the valve in response to...
6125873 Temperature sensing flow control device  
A device for preventing water line freeze damage. The device incorporates air temperature sensing means to control a trickle flow in a water system, so that a trickle flow is initiated whenever the...
6123093 System for controlling fluid flow  
A system for regulating flow of fluid through a flow line, such as a supply line, the line having a flow controller such as a valve, the system having a sensor for generating a signal in response...
6029686 Thermally responsive valve  
A freeze protection plug has latching balls engageable bayonet-fashion with grooves in a fitting. The balls are normally held in engagement with the grooves by a cam, but move inward to release the...
5934302 Control valve apparatus and method for regulating fluid flow in fluid-intake machines  
A control valve system. The system includes a microcontroller electronically connectable to the power supply of an electrical household appliance, such as a washing machine which is connected to...
5771947 Computer readable medium having a computer program for dispensing compressed natural gas  
A method and apparatus for dispensing natural gas into the natural gas vehicle cylinder of a motor vehicle is disclosed. The natural gas dispensing system includes a pressure transducer and a...
5755250 Manifold and valve assembly for a smoke/pollution detection system  
A manifold valve assembly for use in a smoke/pollution detection system in which gas is drawn from a plurality of zones under surveillance and delivered to a smoke/pollution detector. The assembly...
5694963 Method and apparatus for freeze prevention of irrigation systems  
There is disclosed an apparatus for freeze prevention protecting an irrigation system. The response of the apparatus depends on environmental conditions. At a first temperature condition, the...
5638847 Temperature sensitive water supply shut-off system  
A water supply control apparatus includes a flow sensor, connected to a supply line of an indoor plumbing network, which sends a flow signal to a controller when flow is detected. The controller...
5577532 Valve actuator  
An actuator has been developed for actuating a valve for controlling fluid flow in a conduit, the actuator having, in one aspect a housing with a main interior housing space, a rod with a...
5539384 Electronic water utility safety apparatus  
An electronic water utility safety apparatus comprising a control box positionable within the house of a user. A display indicates a sensed water pressure. An indicator is mounted in the box to...
5445176 Moisture sensitive irrigation valve control  
A moisture control system which overrides power supplied to electrically operated irrigation control valves such that a preset amount of moisture content of soil is not exceeded. The system is...
5402815 Temperature sensitive water supply shut-off system  
A water supply control apparatus for a household plumbing system having a main water supply line includes a shut-off valve disposed in the main water supply line, electric motor means for actuating...
5373957 Low expulsion vent for an automotive fuel tank  
A fuel tank has a filler pipe to which a vent pipe is attached on one end and which divides into two openings on the other end within the fuel tank. One opening is positioned below the other...
5344117 Micro-actuator  
A micro-actuator includes force elements and compensation elements arranged on a bending element such that a change in the environmental temperature does not cause any flexing of the bending element.
5343905 Vehicular fuel tank vent  
An automotive type fuel tank has a fuel fill pipe with automatic pressure responsive fuel shutoff means, and a vapor vent assembly. The assembly has a small tube extending down through the top of...
5325881 Seismic valve  
A seismic shut off valve includes a cripple column responsive to seismic movement. A toggle spring overlies the cripple column. Latch pins extend from the toggle spring into a valve body to hold a...
5287876 Water piping system  
The present invention provides a water piping system wherein when a predetermined time elapses after the flow of the water in a hose has stopped, the water is drawn out of the hose, thereby...
5259424 Method and apparatus for dispensing natural gas  
A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing...
5240028 Temperature sensitive water supply shut-off system  
An automatic water supply shut-off system includes a shut-off valve movable between opened and closed positions in a line leading from the water supply. An electric motor actuates the shut-off...
5238030 Method and apparatus for dispensing natural gas  
A supply plenum connected to a source of compressed natural gas (CNG) and a control valve assembly for selectively turning on the flow of CNG through a sonic nozzle and out through a dispensing...
5228469 Fluid control system  
The fluid control device of the present invention combines a flow sensing unit in series with a control valve. The flow sensing unit is of the displacement piston type and the flow rate is...
5148826 Moisture monitoring and control system  
There is provided a system for monitoring moisture level in soil and controlling application of water to the soil. The system includes a moisture level sensor which generates a small voltage...
5139044 Fluid control system  
The fluid control device of the present invention combines a flow sensing unit in series with a control valve. The flow sensing unit is of the displacement piston type and the flow rate is...
5113891 Water freeze guard valve  
A water freeze guard valve having a water-filled actuator chamber and a linkage assembly for transmitting linear expansion movement, caused by ice formation within the actuator chamber, to force a...
5109881 Temperature sensitive control valve  
A temperature sensitive valve having a body with an internal valve chamber being open through said body, an inlet extending into the valve chamber, a control outlet communicating with said valve...
5090436 Temperature sensitive water supply shut-off system  
An automatic water supply shut-off system includes a shut-off valve movable between opened and closed positions in a line leading from the water supply. An electric motor actuates the shut-off...
5088516 Temperature compensator for pressure regulator  
A temperature compensator for use on a gas pressure regulator which inflates an infatable aircraft slide. The temperature compensator is cooperative with a movable valve upon actuation, to control...
5007446 Temperature actuated flow control device  
A flow control device, such as a valve, has a valve body which has a fluid holding chamber therein. An inlet in the valve body couples the chamber to a source of pressurized fluid. An outlet in the...
4988041 Method and apparatus for watering cultivated land, providing a protection for cultivated plants  
Method and apparatus for protecting plants against the effects of a drop in ambient temperature by causing the formation and preservation of dew or rime, according to the circumstances. The...
4969482 Emergency fuel shut-off valve  
A reusable emergency gas shutt-off valve for terminating the supply of fuel to a dwelling is adapted for fluid pressure actuation at a location outside of the dwelling, manual actuation on the...
4958655 Multiple fill level vehicle fuel system  
A two fill level system uses a valve within the tank interior having a pair of different height venting inlets to the vent pipe, with a fuel level responsive seal at one inlet and a temperature...
4947886 Temperature actuated flow control device  
A flow control device, such as a valve, has a body with two portions which define two valve chambers, an inlet, which is coupled to a source of pressurized fluid and which opens into one of the...
4896690 Pressure and thermal relief valve  
In a thermal responsive relief valve, an elongated tubular valve body axially contains a strut secured at one end portion to the bore of the valve body and axially contained at its other end by a...
4848389 Freeze protection device  
For freeze protection of a water line, a T fitting in the line is provided with a removable threaded bushing having a plug with radially projecting balls which engage J-shaped slots in the bushing...
4848388 Emergency valve with test capability  
Self actuating valve systems for fluid line networks comprising a main valving stem (3) with a driving-to-close bias spring (14) which is blocked by a detent ball (15) from closure against a valve...
4844113 Fluid flow safety valve  
An automatic shut-off safety valve comprising a movable poppet held in a stable position by magnets and a movable weight. On the occurrence of an abnormal condition, such as a seismic event, the...
4800804 Variable air flow diffuser  
An air diffuser adapted for mounting in a building for controlling air pressure within a space, the diffuser comprising a tile such as can be placed in a ceiling and having an air inlet side and an...
Matches 1 - 50 out of 238 1 2 3 4 5 >