Matches 1 - 50 out of 87 1 2 >
Match Document Document Title
7387721 Apparatus and system for removing scale causing chemicals in hot water systems  
Hot water pipes, in areas with hard water, tend to fill with scale until they no longer pass enough water. De-scaling water pipes with acid is dangerous, expensive and damages the pipes. Ion...
RE40307 Inlet baffle for water heater  
A baffle for slowing the incoming water flow into a booster heating tank so that the turbulence in the water tank is minimized. The baffle consists of an inner cap and outer cap which are...
7360507 Energy saving apparatus  
An energy saving apparatus is described. The energy saving apparatus is attached to a standard gas-powered water heater. All gas-powered water heaters typically have an air vent which vents hot air...
7281497 Condensation heat exchanger with plastic casing  
The invention concerns a heat exchanger comprising at least one helically bound bundle of tubes, whereof the thermally conductive wall has a flattened and oval cross-section, whereof the main axis...
7001524 Method for removing scale causing chemicals in hot water systems  
Hot water pipes, in areas with hard water, tend to fill with scale until they no longer pass enough water. De-scaling water pipes with acid is dangerous, expensive and damages the pipes. Ion...
6792896 Holding tube for a heat treatment plant using injection heating  
The invention relates to a holding tube for a heat treatment plant using injection heating. The holding tube includes a first, fixed section consisting of a conduit of predetermined and a constant...
6772713 Method and apparatus for providing and utilizing outside air for boiler combustion  
A method and apparatus for sealing a combustion intake for a boiler from inside air is provided. A method and apparatus for providing a transition piece for venting fresh air to and combusted air...
6736535 Method for continuous internal agitation of fluid within hot water heaters or other fluid containing vessels  
The act of heating water within a contained vessel that is common to most buildings, whether residential or commercial or located in recreational vehicles, mobile homes, aircraft, ships or marine...
6666173 Hot gas liquid heater  
A hot gas water heater has a housing, and at least a pair of concentric coils in the housing through which liquid to be heated is sequentially passed. Each coil has a helical tube with adjacent...
6588377 Process and apparatus for recycling water in a hot water supply system  
A process and apparatus are provided for conserving water and heat energy in a hot water supply system. A holding tank is provided near the Point Of Use to capture unwanted cooled water. An...
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....
6516754 Convective heating system for liquid storage tank  
A heating system for heating liquids, stored in a tank at low ambient temperature, has a heating chamber with an inlet and an outlet for convectively flowing liquid past a flameless heater. Cold...
6415744 Combustion boiler  
The present device relates to a combustion boiler having a fan part provided with a driving motor, a suction fan secured on a rotary shaft of the driving motor and disposed on a suction line, for...
6334411 High efficiency, glass-lined, combination space and hot water heater  
A combination space and hot water heater is comprised of an inner tank having an outer casing spaced therebout with insulation being interposed between the casing and the inner tank. The inner tank...
6116195 Flame traps for water heaters  
A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one entryway adapted to allow air and...
6041742 Fluid heating and pumping apparatus  
A fluid heating and pumping apparatus for use with hot fluid space heating systems includes a fluid tank containing heated fluid and a collapsible bladder contained within the fluid tank for...
5943984 Side inlet for a water heater  
An inlet is provided for delivering water into a water heater through a port in its side. The inlet includes a conduit having a distal portion that extends toward a bottom of the water heater. That...
5921207 Automatic flushing system for water tank  
A system for periodically flushing accumulated sediment from hot water tanks including a drain valve controlled by an electric actuating means capable of rapid actuation of the valve from its...
5787229 Electric hot water tank with layered storage  
An electric hot water heater tank is fitted with a plurality of separators that divide the tank into a plurality of chambers surrounding the tank axis and extending between the top and bottom...
5678533 Hot water heater with separator structure  
A hot water heater comprises a tank having top and bottom walls and a peripheral wall having an axis, the tank being adapted to contain water at a predetermined pressure above atmospheric pressure....
5671771 Hot water system  
A hot water plumbing system comprising a water heater, a delivery location, a delivery line delivering water from said heater to said delivery location, a riser located adjacent said delivery...
5438642 Instantaneous water heater  
A heater for the rapid heating of water includes a main body having plural vertical upwardly opening chambers, combined with a molded cover plate that can be removably installed over the upper part...
5365891 Inlet water turbulator for a water heater  
An inlet water turbulator body is coaxially secured within the lower end of an inlet water supply dip tube vertically disposed with the storage tank portion of a water heater. A spaced plurality of...
5361729 Water heaters  
A hot water heater comprises a vessel, a heating means for heating water in the vessel, and a control conduit for diverting cold water from the cold water inlet to the hot water outlet so as to...
5092279 Distribution baffle for hot water tank  
A hot water tank for heating water which includes means for transforming a high velocity jet of incoming cold water at the inlet of the tank to a piston for forcing hot water accumulated in the...
5054437 Storage tank for water heaters and the like with collector outlet dip tube  
A storage tank having a vertical, cylindrical tank, a fluid inlet, and a fluid outlet, includes a collector outlet dip tube for collecting hot fluid evenly across a horizontal cross section of the...
5006689 Vacuum insulated storage-type electric water heater having an external bubble pump heating unit  
A hot water boiling apparatus includes a hot water storage tank. The storage tank has an inner tank storing water therein, an outer tank surrounding the inner tank, and a vacuum heat insulation...
4964394 Water heater with heat trap in dip tube  
A hot water heater (12) has a modified dip tube (70) with a heat trap (80, 78, 82, 74) therein. The cold water inlet pipe (90) is threaded directly into a spud (26) on the tank without an extra...
4959526 Storage type electric water heater having a closed circulation loop with a bubble pump  
A hot water boiling apparatus includes a hot water tank filled with water. A water supply pipe and a hot water supply pipe are connected to the bottom and top of the tank, respectively. A bubble...
4957097 Foam insulated vessel and method of making the same  
A foam insulated vessel, such as a water heater. The water heater includes a tank to contain water to be heated and a jacket is spaced outwardly of the tank to provide an annular cavity...
4949680 Water heater having filling dip tube  
A hot water heater having a vertical, cylindrical tank with a curved top wall, means for heating water within the tank, a cold water inlet and a hot water outlet at the top includes an inlet dip...
4945892 Water heater with outer jacket dam  
A water heater includes a lower skirt ring (10, 50) supporting and spacing an inner storage tank (2) above a support surface (10a), and an outer jacket (42, 54) spaced outwardly therefrom to define...
4940024 Hot water heater  
The formation of bacteria and germs, in particular of legionella during the heating of hot water is prevented by the special cold water outlet inside the hot water heater. In this hot water heater...
4907569 Water heater with skirt ring dam  
A hot water heater (40) has an inner storage tank (2), a lower skirt ring (42, 60, 74, 84, 110, 116) supporting and spacing the tank above a support surface (10a), and an outer jacket (46, 66, 80,...
4907570 Water heater with upwardly sliding outer jacket  
A water heater (40) includes a lower skirt ring (42) supporting and spacing an inner storage tank (2) above a support surface (10a), and an outer jacket (44, 56, 70) slid upwardly along the inner...
4898150 Pressure balancing water heater dip tube turbulator attachment  
The present invention relates to an end piece for a water heater dip tube which converts the dip tube from primarily a water feed only, to a combination water feed and turbulator. The end piece...
4818845 Storage type electric water heater having a closed circulation loop provided with a bubble pump  
An electric storage type water heater includes a tank having cold water introduced into the lower part thereof and an upper part connected by a hot water supply pipe to a faucet. A bubble pump...
4790291 Sediment agitating apparatus for water heater  
An agitating mechanism to aid in preventing the buildup of sediment in a gas fired water heater. The agitating mechanism includes a pump located outside of the tank and a first conduit connects the...
4777347 Electric water heating tank with thermosiphonic circulation for improved heat recovery rate  
An electric water heater has a vertically disposed tank with a lower cold water inlet, an upper hot water outlet and at least one horizontally disposed elongated immersion heating element extending...
4739728 Thermal foil for water heaters and the like  
A hot water heater having a vertical, cylindrical tank with a top wall, means for heating water within the tank, a cold water inlet at the bottom and a hot water outlet at the top includes damping...
4703748 Destratifier for hot water tanks  
A fluid flow machine consisting of a stator, mounted underneath a hot water tank, and an armature-impeller unit arranged inside said hot water tank, being separated from said stator by a spherical,...
4677939 Heat exchanger and application to a fluid heating apparatus, particularly a domestic hot water accumulator  
The apparatus for heating a fluid comprises a heating enclosure supplied in its lower part with fluid to be heated, a combustion chamber comprising a burner at one of its ends and extending on the...
4632065 Thermal baffle for water heaters and the like  
A hot water heater having a vertical, cylindrical tank with a curved top wall, means for heating water within the tank, a cold water inlet at the bottom and a hot water outlet at the top includes a...
4598694 Water heater partition and method  
A water heater storage reservoir partition is shaped to provide increased thermal stratification in the tank. A generally circular partition member has a central opening therein and a wedge shape...
4592504 Hot-water storage type hot-water supply apparatus operating under a natural circulation principle  
A hot-water storage type hot-water supply apparatus operates under a natural circulation principle wherein hot-water is accumulated within a hot-water tank by circulating cold water or hot-water...
4589374 Spiral corrugated corrosion resistant heat exchanger  
A heat exchanger is formed of a pair of concentrically arranged cylindrical shells, closed at each end to define a chamber through which water can pass. A combustion element extends into the inner...
4579086 Vertical tube boiler  
A vertical tube boiler having a plurality of vertical tubes which extend through a water tank and communicate with a combustion chamber and a chamber provided with a flue outlet, the tank being...
4578565 Combined electric heating and water inlet/outlet assembly for water heating tanks  
A combined heating and water inlet/outlet assembly for installation in a bottom opening of a domestic water heater tank includes a plastic mounting flange adapted to cover the opening and a plastic...
4505231 Water heater construction with sediment removal means  
A water heater including a water tight tank and a source of heat for heating water inside the tank. A hot water outlet is located in the top of the tank. An inlet agitator tube is mounted in the...
4503810 Water heater  
This invention is a water heater wherein a heat source is located outside a hot water storage tank and high temperature hot water can be distributed between the regions of the hot water storage...
Matches 1 - 50 out of 87 1 2 >