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7407113 |
Products and process that act as a safety valve to prevent scalding
A thermostatic valve incorporated within a plumbing system for regulating the flow of fluid. The thermostatic valve includes two valve assemblies operatively cooperating to preclude the flow of...
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7377286 |
Drain valve
A drain valve having a temperature responsive member that holds the drain valve in a water conserving mode when water is above freezing yet allows the drain valve to drain when the water is near...
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6918402 |
Flow control apparatus
The present invention provides a flow control apparatus and method. In accordance with the present invention, the flow control apparatus comprises a thermostat that automatically actuates valve to...
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6892747 |
Temperature actuated valve
A temperature and pressure sensitive valve is disclosed herein. The valve has a valve piston for regulating flow through the valve, a valve piston guide for directing movement of the piston, the...
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6883534 |
Freeze protection device for wall hydrants/faucets
A freezeless wall hydrant has a normally horizontal fluid inlet tube with an interior end and exterior end. A hollow valve fitting is rigidly secured to the interior end of the inlet tube for a...
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6830063 |
Freezeless protection device for wall hydrants/faucets
A freezeless wall hydrant is provided that has an elongated inlet pipe comprised of a hollow tube. The tube is connected to a valve and fitting assembly on its inner end for connection to a source...
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6805150 |
Supply device for snow gun
The invention concerns a device consisting of at least a valve comprising a body ( 1 ) with a through channel ( 5 ), provided with several orifices and in particular orifices ( 4 ) serving both as...
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6805154 |
Freeze protection device for wall hydrants/faucets
A freezeless wall hydrant has a fluid inlet end connected to a source of pressurized water, and a fluid outlet end. A check valve is placed in the bore of the valve body and is spring loaded to...
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6782908 |
Automotive washer system utilizing a freezable washer liquid and a freeze-resistant washer liquid
A washer system which includes a first reservoir containing a freezable washer liquid and having a drain port therein. The drain port is in fluid communication with the freezable washer liquid when...
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6722386 |
Flow control apparatus and method
The present invention provides a flow control apparatus and method. In accordance with the present invention, the flow control apparatus comprises a thermostat that automatically actuates valve to...
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6530391 |
Temperature activated valve
A temperature and pressure sensitive valve is disclosed herein. The valve has a valve piston for regulating flow through the valve, a valve piston guide for directing movement of the piston, the...
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6439260 |
Easy to use residential water supply system for preventing winter flood damage
Electrical control circuitry is provided for normally maintaining an electrically controlled water supply valve in an open condition and an electrically controlled water drain valve in a closed...
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6427712 |
Ambient temperature shape memory alloy actuator
A novel shape memory alloy (SMA) actuator which responds to changes in ambient temperature. The actuator is capable of operating bidirectionally over a smaller temperature range than conventional...
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6374848 |
Automatic mechanism for cut-off and drainage of under low-freezing ambient temperature conditions
An automatic mechanism is provided for cutting-off water flow to a plumbing system of a house, an apartment, a business or the like, while at the same time draining water/plumbing systems when...
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6374849 |
Test cock apparatus with freeze protection capability
A test cock apparatus with freeze protection capability for controlling fluid pressure and flow in a backflow preventer valve, including a valve housing having interior walls defining a chamber...
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6363960 |
Frost protection device
This invention relates to a frost protection device for preventing sections of water pipes which are in danger of being affected by frost from freezing up. Said frost protection device consists...
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6196246 |
Freeze-resistant plumbing system in combination with a backflow preventer
A plumbing system which, when ambient outdoor temperatures drop below freezing, circulates water to prevent it from freezing, utilizing a check valve to prevent water from flowing back into the...
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6145531 |
Temperature sensitive valve device
A temperature sensitive valve includes a body having an interior area, a top end having an inlet and a lower end having an outlet. The top end is design and configured to be removably secured to an...
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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...
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6050230 |
Locomotive engine cooling system drain valve with low voltage sensor
A locomotive cooling system including a conduit adapted to conduct therethrough a flow of coolant; a power source providing a nominal voltage; and a valve assembly including a valve body defining a...
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6021798 |
Apparatus for preventing freezing of interior water pipes
An apparatus for preventing freezing of interior water pipes. A thermal switch is attached to a hot and/or cold water supply pipe in a remote location that is prone to freezing in cold weather. The...
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6003538 |
Drain valve
A drain valve providing a drain sleeve having a first end, a second end and a flow-chamber therebetween. The first end includes a first diameter being smaller than a second diameter of the second...
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5785072 |
Compressed stopper channel bypass pipe burst pressure relief apparatus for plumbing fixtures
According to the present invention, water regulation assemblies disposed in the water supply path of conventional fixtures are modified to include a pressure relief assembly which permits release...
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5785073 |
Pipe burst protection pressure relief apparatus for sliding plate plumbing fixtures
According to the present invention, water regulation assemblies disposed in the water supply path of conventional fixtures are modified to include a pressure relief assembly which permits release...
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5715855 |
Temperature-activated valve
A temperature-actuated valve includes an elongated housing having anterior and posterior segments, the anterior segment being connected to an outdoor water supply. A valve within the anterior...
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5692535 |
Icing preventer with temperature adjustment washer
Apparatus for automatically opening an orifice to allow flow when ambient temperature drops below a predetermined level, such as the freezing point of water. The apparatus is for connection to a...
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5628285 |
Drain valve for a marine engine
A drain valve assembly for automatically draining water from a cooling system of an inboard marine engine when the ambient temperature drops to a preselected value. The drain valve includes a...
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5318059 |
Methods and apparatus for prevention of water pipe freeze-up in a dwelling
The freezing of water pipes in a dwelling in cold climates is prevented by separating some of the cold water delivered to the dwelling and conducting that separated cold water into heat exchanging...
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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...
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5275192 |
Freeze control valve
In the Freeze Control Valve is situated a bellows that will contract at a temperature of 33 to 34 degrees F. thus triggering the valve to its position allowing the water or liquid to flow through a...
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5220937 |
Freeze buster
A water freeze prevention device is provided and includes a mechanism that is installed between a water meter and incoming water pipes to drain the water pipes to prevent the water pipes from...
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5209078 |
Vacuum fluid cooling apparatus
An air cooler system for use in association with an air circulation system and having a process air heat exchanger for recovering heat from the process air in the system, a vacuum chamber with a...
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5113892 |
Freeze control and drain valve
A pressure-activated diaphragm valve which when installed in the main up-stream side of a pressurized line, responds to signals from a control unit to shut off the main supply line and at the same...
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5055185 |
Anti-freeze separator assembly
This invention relates to an anti-freeze separator assembly connected to a piece of equipment in outdoor freezing conditions in order to take a fluid, such as water, and treat same for subsequent...
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4967780 |
Anti-freezing device
An anti-freezing device for use in water supply conduits, which includes a driving chamber for imparting a drive to a main valve which is moved by the volumetric expansion due to the freezing of...
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4932429 |
Screw stopper including anti-freeze device used for water pipe valve
This invention relates to a screw stopper including an anti-freeze device used for water pipe valve and fitted to the lower end portion of an open/close movable valve of said water pipe valve...
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4883082 |
Temperature-responsive valve
A temperature-responsive valve comprises a pair of wax-filled thermal actuators connected in series and set to expand at different temperatures respectively at the high and low limits of a...
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4878512 |
Valve mechanism
In a freeze protection-valve, a wax actuator is situated in a heat-conductive housing to which heat is conducted from the liquid system being protected. The housing prevents the actuator from...
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4852601 |
Thermally-activated drip valve
A self-actuating drip valve for attachment to a standard outdoor faucet for the prevention of freezing of such exposed faucets and water pipes leading to the faucet. A tube includes a collar at one...
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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...
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4815491 |
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...
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4784173 |
Water freeze prevention valve
A freeze prevention device for water systems includes a relief valve and an actuator having an elongated chamber which contains water and segments that sequentially sense the incremental expansion...
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4766923 |
Freeze safe valve
A freeze safe valve has a valve body, a valve gate, a washer, a fastener having an interior channel, and a plug placed in the channel of the fastener. With fluid pressure in the normal downstream...
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4766925 |
Dump valve assembly
Dump valve assembly for a cooling system in which the coolant is water without antifreeze, the system having a compressed air-operated dump valve supplied with operating air from a special...
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4763682 |
Thermally responsive valve activating assembly
A valve activating system is provided, which is intended for association with a valve assembly including a valve housing defining a conduit therein which includes a fluid inlet opening and a fluid...
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4751495 |
Analog pulsed heat trace monitor or the like
A system, utilizing an analog pulsed signal, is for monitoring the condition of a system, by way of illustration, a multi-circuit electrically heat-traced substrate. The system senses the...
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4717072 |
Sequential valve and drain for snow gun
A feed device for automatically controlling the operation of a snow gun, the device having an axially displaceable slide to selectively feed air and water under pressure to the snow gun and bleed...
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4681088 |
Freeze protection valve for solar heaters
An automatic freeze protection valve apparatus for solar heaters is provided with a remote sensing element, remote from the valve itself and which operates in a non-modulating fashion. The valve...
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4657038 |
Apparatus for preventing water pipe freeze-up
An automatic liquid flow control unit is adapted to be attached to an externally threaded spigot to enable liquid to trickle therethrough in order to avoid liquid freeze-up. The unit includes a...
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4638828 |
Water temperature actuated drip valve
An automatically operated valve to prevent freezing of water lines. The valve is elongated, having threads on one end to be received in a conventional plumbing tee or the like, or in a threaded...
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