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H002231 Tubular heating-pipe solar water-heating-system with integral tank  
A collector core for a solar water-heating-system includes a plurality of heat-absorbing pipes each of which surrounds a cooler-water return-pipe. The heating-pipes may connect directly to an...
7398779 Thermosiphoning system with side mounted storage tanks  
An improved thermosiphon solar heater is disclosed. The thermosiphon solar heater includes a substantially planar collector including a plurality of heat exchanger channels that are positioned next...
6776154 Solar energy system with direct absorption of solar radiation  
A solar energy system comprises a solar absorber in the form of a solar boiler tank with a lower working liquid region having a liquid inlet and filled with a working liquid capable of boiling...
6696637 Conversion of solar energy  
An array of elongated concave parabolic trough-shaped reflectors is disclosed. The orientation of the array is biaxially kept essentially perpendicular to rays of the sun by an optical control such...
6655375 Solar thermoaccumulator  
A solar thermoaccumulator, including a parallel battery of closed-circuit vacuum solar pipes, and provided with a plurality of accumulation bulbs, which are either immersed in a primary conductive...
6619282 Solar concentrating liquid lightguide  
This nontracking solar concentrator can be larger than a football field and produce a 20 sun focus. A tank holds panels to collect light and water to guide light to the focus. The tank has a wide...
6407328 Photovoltaic device  
A photovoltaic device for converting radiation energy into electric power, includes a front side exposed to radiation from a radiation source, a backside; and a cooling unit having a liquid medium,...
6370328 Water heating tank with thermosiphonic circulation for improved heat recovery rate  
An electric water heater has a vertically disposed tank with a cold water inlet, a hot water outlet and at least one horizontally disposed elongated immersion heating element extending into the...
6357512 Passive heating and cooling system  
An apparatus and method are disclosed by which the temperature of an enclosure can be prevented from reaching extremely high or extremely low points. The enclosure provides a functional area whose...
H001995 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Water heating tank with thermosiphonic circulation for improved heat recovery rate  
An electric water heater has a vertically disposed tank with a cold water inlet, a hot water outlet and at least one horizontally disposed elongated immersion heating element extending into the...
6119682 Water heater and storage tank  
6018122 Tracking solar module  
To provide a tracking-type solar module capable of high-performance sunlight-tracking with a simple configuration while simultaneously performing highly effective cooling of a solar cell, a solar...
5931156 Integral heat-pipe type solar collector  
A heat-pipe type solar collector includes a heat absorber portion adapted to absorb solar energy to evaporate a working fluid in heat tube elements; and a heat release portion communicating with...
5537990 Solar water heating system  
A solar water heating system includes a water storage tank to which a hot water outlet pipe and a cold water inlet pipe are connected. A solar-collector unit is mounted below the water storage...
5462047 Solar water-heater with integrated storage  
A solar water heater with integrated storage tank can be filled isothermally with water of which the temperature is freely selected and which, when the tank is full, passes into a thermosiphoning...
5351488 Solar energy generator  
A system for coupling a plurality of solar powered bubble pumps in series is described. By controlling the boiling temperature of the circulating fluid contained in the system, the flow of liquid...
5245984 Solar domestic hot water system with thermal siphon preheating  
A solar energy based domestic hot water system which employs a columnar-type heat exchanger designated as a thermal booster having two columns, through one of which passes extremely warm water...
5103802 Thermosyphon heat-storage and backup heat apparatus  
Prior inventions in 2-tank solar heat-storage systems, generally speaking, provide for solar-produced heat stored in a first tank. Therefore STORED solar heat is limited to that one tank. Backup...
4960105 Sun operated boiler for heating liquids  
A sun operated installation for heating liquids generally comprises a collector of insolation and a storage tank. The collector and the tank are interconnected by a circulation pipe. In that pipe...
4745906 Passive heat transfer device  
The invention relates to a device for passive heat transfer between a heat source and a condenser (6) by means of a vaporizable liquid and a cycle with two phases controlled by a float valve (2, 4,...
4685445 Solar heater  
A thermosyphonic solar heater including a solar collector for heating a liquid by solar radiation, the collector having an inlet socket and an outlet socket, a tank into which the heated liquid is...
4676225 Method and apparatus for enhancing the pumping action of a geyser pumped tube  
A geyser pump and a geyser pumped heat transfer system having a multitude of heat absorbing tubes from which heated liquid is pumped into a vapor/liquid separator by geyser action enhanced by...
4637375 Integrated solar heating unit  
The instant solar heating unit takes advantage of anti-reverse-siphon techniques developed by the inventor and combines anti-freeze features, and houses the entire unit in a wedge-shaped, integral...
4604991 Hot water preheater system  
A secondary heating source is used to preheat the water supplied to a conventional hot water tank. Three two-position valves permit the water from the water supply line to be supplied directly to...
4599994 Thermosiphon solar water heater having freeze rupture protection  
A thermosiphon solar water heating system includes a solar energy collector coupled to an elevated heated water storage tank. Water at about 4° C. is produced and used to displace colder, less...
4573525 Thermally actuated heat exchange method and system  
An improved heat actuated heat exchange system having conduit in a primary heating zone, a boiler in a second heating zone, and an accumulator in a third heating zone operatively connected by other...
4567878 Solar anti-reverse siphon system  
A solar heater system utilizes a passive anti-reverse siphon system to prevent the reversal of the fluid flow during evenings and other times when the ambient temperature is below the temperature...
4541412 Check valve and spring to prevent forward and reverse thermosiphoning in solar collector systems  
A freeze protection system allows the working fluid contained in the communicating tubes of the solar collector to drain from both the input and output tubes of the collector when a first...
4531510 Bidirectional thermal syphon valve, installation for the production and storage of heat or cold comprising such a thermal syphon valve, and various uses  
The invention relates to a bidirectional thermal siphon-valve operating by natural convection. It further relates to an installation for the production and storage of heat or cold comprising such a...
4528976 Thermal control system for solar collector  
A fluid cycling system for a solar collector is disclosed. The collector has a pump to force fluid through the collector to a fluid exit. The present invention provides a vertically extending...
4519383 Anti-reverse siphon solar heating system  
A solar heater which is adapted for liquid heating and space heating, or both, utilizes a passive anti-reverse siphon concept in which fresh air or water is required to traverse upwardly along a...
4508102 Heat collection, dissipation and storage  
Heat collection and dissipation are provided utilizing a roofing system having a support sheet with an upstanding edge around its periphery and a pair of water impermeable membranes disposed in the...
4478211 Self-pumping solar heating system with geyser pumping action  
A self-pumping solar heating system having a collector including a multitude of small diameter riser tubes from which heated liquid is pumped into a header by a geyser action. A vapor condenser...
4467788 Solar energy actuated apparatus for distilling water from liquids and solids  
The apparatus of the disclosed invention uses solar energy that impinges upon it for the purposes of distilling water from solutions and mixtures and for drying out of agricultural produce and...
4437456 Heat collector  
A heat collector and method suitable for efficiently and cheaply collecting solar and other thermal energy are provided. The collector employs a heat pipe in a gravity-assist mode and is not...
4428362 Solar heating system  
A solar heating system is provided incorporating the flat plate collector and storage tanks substantially in the same unit and avoiding the usual reverse-siphon problems that are inherent in the...
4419983 Device for passive solar heating and storage of a liquid  
The invention is a passive, stationary solar collector. The collector is a cylinder of essentially circular cross section set in a fixed position with its longitudinal axis laying essentially in a...
4416257 Solar energy collector  
A solar energy collector comprising a collector core located within a longitudinal parabolic reflector and formed of a series of spaced tubes exposed to the direct rays of the sun and to rays...
4409962 Water storage tank  
The present invention relates to a cylindrical water storage tank for a solar water heater which tank is entirely surrounded by a layer of insulating material, said cylindrical tank being arranged...
4366807 Natural circulation solar heat collection and storage system  
A solar heat energy collection system of the natural circulation type where the heat store is located above liquid cooled collectors. The system utilizes at least two liquids, the first is a...
4353352 Solar thermosyphon water heater  
A solar thermosyphon water heater assembly wherein an inlet manifold and an outlet manifold which also serves as a storage tank are connected by a solar heat absorber comprising flexible rubber...
4350145 Solar collector for heating purposes  
A solar collector transfers the thermal energy of solar radiation to a liquid which acts as thermal vehicle, said liquid being moved by a thermo-convective action in a closed circuit so...
RE31032 Solar water heater  
Solar water heater using the phase-change principle including a collector, a condenser, and an accumulator a vapor release drum joined to form a natural circulation system , including a...
4314667 Thermal expansion check valve  
A ball check valve is provided for use in a thermosiphoning solar energy system. The valve is extremely sensitive to low pressure variations and will permit reverse thermosiphoning above specified...
4306544 Solar water heater  
A solar powered water heater including a housing within which are a water storage tank, reflective coated insulation and a solar panel. Pressurized water such as from a municipal water system is...
4294229 Thermosiphoning module for environmentally driven heating and cooling system  
The module includes a panel of thermal insulation which facially separates the interior space into an outer, facially large, volumetrically small chamber and an inner volumetrically large chamber....
4285389 Thermal energy storage apparatus  
A thermal energy storage apparatus and method in which containers holding a salt hydrate heat storage material are rotated by convection currents created in a bath liquid surrounding the...
4258700 Solar or waste heat-exothermic/endothermic liquid-heat sink and pump  
Many acids, bases and the familys of liquid chemicals which are exothermic when mixed with water, and are reversible as endothermic are usable as "heat sinks" to store solar and waste heat energy....
4237866 Solar heater  
A solar heater having a collector portion and a combined header and heat exchanger. The collector has a plurality of fluid passage means each individually in fluid communication with the chamber in...
4178912 Solar heating system  
Solar heating system, wherein solar heating assemblies are adapted to form the roof of a structure. The solar heating assemblies may not occupy the entire surface area of a roof, but the upper...
Matches 1 - 50 out of 56 1 2 >