Matches 1 - 50 out of 86 1 2 >
Match Document Document Title
7634976 Apparatus and method for delivering water into a water heater  
A water heater inlet conduit having a top end portion configured to be coupled to an inlet port of a water heater is provided. The bottom end portion of the inlet conduit is configured to extend...
7631662 Hot/cold fluid isolation valve  
A fluid isolation valve having a valve body with a first fluid flow port, a second fluid flow port and a fluid drain port with a valve in the fluid drain port. The valve body also defines a fluid...
7392766 Temperature and pressure relief apparatus for water heater  
A liquid heating appliance, representatively a water heater, is provided with protective apparatus for preventing rupture of its liquid storage tank portion caused by overheating of pressurized...
7270087 Heat trap  
A heat trap assembly for providing a thermal dam within piping associated with water heaters is disclosed. The heat trap includes an elongated housing, a fin and a flap member. The housing includes...
6935280 Cold water inlet for reducing accumulation of scale  
A cold water inlet for a tank of a water heater is provided. The inlet includes an inlet conduit configured to extend toward a flue extending upwardly through the tank. The inlet conduit includes a...
6920844 Thermal expansion arrester for water heaters  
A thermal expansion arrester for positioning within the tank of a water heater comprises a rigid tube maintaining a compressible volume of gas between first and second closure members wherein at...
6877461 Portable instant hot water heater  
A portable instant water heater. Water is delivered to a base unit of the instant hot water heater by a pump that draws water from a reservoir through a flow control valve. The water flows into a...
6612267 Combined heating and hot water system  
A combination domestic hot water and space heating system has an instantaneous domestic hot water heat exchanger and a low mass boiler-type heat generator connected in a series by a boiler water...
6553947 Water mixing system for water heaters  
Disclosed herein are storage type water heaters having means for improved mixing of cold water supply with water stored in the water tank of a water heater, means for limiting surges of water into...
6543393 Fire suppressing water heater system  
A fire suppressing water heater system is provided including a fire suppressing water heater system is provided including a water heater, fire detection means, spray means, and water transport...
6532906 Inlet heat recovery module for water heater  
A water heater includes a storage tank communicating with a cold water supply pipe and a hot water supply pipe for the respective supply of cold water to, and removal of hot water from, the tank....
6302063 Water heater heat trap with pressure relief assembly  
A heat trap assembly includes a housing adapted for interconnection between a hot water tank and a water line with the housing including an interior flow chamber. A one-way valve is disposed within...
6289852 Hot water and steam generating method and apparatus  
Method and apparatus for heating water to one of a plurality of predetermined temperatures and for generating steam. A burner with a water jacket receives water from a pump which obtains water from...
6269780 Water heater heat trap  
A water heater includes a spud connected to a tank wall and surrounding an opening in the tank wall. A support surface is provided in the spud, preferably by the tank wall, that supports a heat...
6173681 Liquid feed pre-heater  
The present invention is drawn to a device for heating liquid feed for veal calves, although this device may have wider application. The present invention is a pre-heater system used to raise the...
6059193 Fitting housing device for a water heater  
A fitting housing device which is to be equipped with a thermostat-controlled mixing valve (15) and a combined shutoff and reflux valve (21) for connection in a cold water inlet pipe and hot water...
6055944 Heating device  
A storage water heater including a vessel for accumulating a volume of water which is to be heated, said vessel having water inlet and outlet means, at least one gas burner, an exhaust gas outlet...
5857482 System for control of fluid vessel overflows  
An overflow control system includes a vessel having a liquid input and output, the vessel having a top and bottom defined by the gravity vector. The system further includes a housing peripherally...
5778829 Gas boiler  
Disclosed is a gas boiler which has a simple structure, which is easy to be installed, and which is manufactured at a low cost. The typical water tank is partitioned into an upper casing and a...
5769033 Hot water storage  
Apparatus for heating and storing water comprises a tank 10 for holding a quantity of water 15 within a space 11 between studs 12 in a wall or like surface 13 of a room 14. An inlet conduit 16...
5690061 Water heater with expansion tank  
A hot water heater has an expansion tank below the water tank and aligned with the water tank, so both water tank and expansion tank occupy the same floor space. The expansion tank is connected to...
5596953 Gas boiler  
Disclosed is a gas boiler which has a simple structure, which is easy to be installed, and which is manufactured at a low cost. The typical water tank is partitioned into an upper casing and a...
5586572 Hydrothermal stabilizer  
Plumbing apparatus is provided for reducing energy consumption of a hot water heater, the apparatus includes a tank and a buoyant piston movably disposed within the tank and having a perimeter...
5588088 Hot water tempering system utilizing a storage tank, a bypass line and a proportional flow controller  
A hot water tempering system tempers the output of a hot water storage tank by mixing that output with a cold water flow in a defined ratio to produce a flow of water at a steady intermediate...
5577491 Heat trap for use with hot water heaters and storage systems  
A heat trap for hot water storage tanks is described and it comprises an outer tubular casing having opposed connecting end portions. The casing has an inner chamber which is divided to provide a...
5572985 Recirculating system with by-pass valve  
A recirculating hot water system comprises a boiler for heating a continuous supply of hot water, a recirculating water line comprising a supply line connected to an outlet of the boiler for...
5347956 Water heater with integral mixing valve  
A water heater comprising a tank adapted to hold water, a water outlet communicating with the tank, a water inlet communicating with the tank and communicable with the outlet independently of the...
5233970 Semi-instantaneous water heater with helical heat exchanger  
A semi-instantaneous water heater is disclosed. The water heater generates domestic hot water by transferring heat from the circulating fluid of a modulating boiler. It is particularly suited for...
5169291 Water heater with shut-off valve  
A water heater (10) has a pressure-transfer module (20) interposed between an external pressurized-water circuit and the water inside the water-heater vessel (12) so that the water is at...
5115491 Tempering system for storage tank water heaters utilizing inlet and outlet heat exchanger  
A fluid tampering system for use with a standard water heater storage tank includes a heat exchanger which interposed between the outlet means for conveying heated fluid from the storage tank to a...
5072717 Hot water priming device  
In a hot water distribution system, a priming device installed just ahead of a tap stores a small amount of water and continuously maintains it to the temperature of the hot water source. When the...
5042524 Demand recovery hot water system  
A demand recovery hot water system in accordance with the present invention provides for return of hot water from a plurality of plumbing fixtures to a hot water source. A transfer tank is provided...
5029605 Fluid vessel overflow system  
There is provided a system for blocking the inflow of water to an appliance such as a hot water tank in the event of a leak in the appliance or water supply thereto. A low voltage current solenoid...
5020721 Rapid recovery gas hot water heater  
A rapid recovery gas water heating system having a water storage tank, a gas water heater separate from the storage tank and having a compact heat exchanger for the flow of water therethrough from...
4966127 Method and apparatus for saving energy in direct fired boilers  
A method and apparatus for reducing the amount of energy consumed in heating a building with a direct fired boiler having a supply reheat line and return reheat line including operating the direct...
4945942 Accelerated hot water delivery system  
A plumbing system in accordance with the present invention provides for accelerated hot water delivery to a plurality of plumbing fixtures from a hot water source. Flow switch means are provided to...
4944253 Safety system for hydronic water heaters and boilers  
A water proof sheet slopes into a built-in shallow basin under a water device to collect any water leaking from the water tank in the device. Water sensitive elevated low voltage contacts in the...
4930551 Automatic hot water recovery apparatus  
Automatic hot water recovery apparatus is provided for conserving the energy in a pressurized plumbing system and water heater apparatus by recovering hot water from hot water lines extending to...
4909274 Valve apparatus  
Disclosed is a valve apparatus having water inlet and outlet pipes, means for maintaining water which may have ruptured from a water storage tank in a water containment area, a float within the...
4896658 Hot water supply system  
A hot water supply system includes an arrangement for adjusting a temperature of water. A plurality of outlets are connected to water supplied objects. A change-over valve selects one of the...
4805662 Hot water heater failure protection device with solenoid  
A ground fault interrupter (GFI) circuit is wired to a main circuit breaker panel. A first output of the ground fault interrupter circuit provides electrical current to a solenoid valve that...
4765280 Direct-contact type hot water heater  
A direct-contact type hot water heater includes a perforated plate having a slope allowing water to flow down from its top apex toward its lower surroundings along both or all sides of the slope in...
4750472 Control means and process for domestic hot water re-circulating system  
A control means and process for a recirculating hot water system having a hot water supply pipe and a hot water return pipe connected in a loop between a hot water outlet of a hot water tank and a...
4738280 Hot water supply system  
An improved hot water supply system is disclosed which provides hot water from a faucet without requiring water flow for a prolonged period of time necessary to displace water retained within...
4735174 Hot water heater with counterflow action  
This gas hot water heater has a storage tank with a vertical flue having an elongated tube surrounding the flue to form an inverted inner tank that is closed at its top portion while being open at...
4699122 Storage water heater system  
A condensing storage water heater system comprises an inverted burner at the upper end of a water tank or cylinder connected to a vertical flueway passing through the center of the vessel. A finned...
4697614 Water conservation system  
The discharge ends of hot and cold water pipes are provided with valved outlets discharging into a common single water outlet and a by-pass pipe communicates the hot and cold water pipes upstream...
4690102 Water heater and distiller apparatus  
A water heater and distiller apparatus is provided in which condensing steam is the distilling portion of the apparatus giving up its latent heat to water which is being heated in the water heating...
4606325 Multi-controlled water conservation system for hot water lines with low pressure utilization disable  
A water conservation system for use in residential dwellings or other buildings having a hot water distribution system. The system conserves water which is typically wasted by users while waiting...
4601263 Apparatus for supplying boiled water  
A boiled water supplying apparatus which includes: a water heating closed tank having a water inlet and a water outlet; a conduit having one open end thereof connected to the water outlet and the...
Matches 1 - 50 out of 86 1 2 >