Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 4213563 | Heat storage and transmission apparatus for heat from a fluid heated by the sun An installation for storing and transmitting heat of a fluid heated by solar radiation, said installation being provided with a fluid tank and contained in said tank heat exchanging means for heat exchange between the heated fluid supplied through a pipe ... | 07/22/1980 |
| 4204407 | Heated piping system for fusible salt heat exchange fluid in a solar power plant The method of heating the piping system for a HITEC or PARTHERM 290 (trademarks) heat exchange flow system in which this fusible salt is used as the heat exchange fluid throughout a solar electric power plant field. To prevent the fusible salt from freezi... | 05/27/1980 |
| 4200148 | Storing and extracting latent heat Heat is stored by melting a mixture of salts contained in compartments between an inner and an outer tube and radial copper fins which taper in radial outward direction. The molten salts solidify upon passage of relatively cold water through the inner tub... | 04/29/1980 |
| 4192144 | Direct contact heat exchanger with phase change of working fluid A direct contact thermal storage heat exchanger which utilizes the liquid-vapor phase change of a working fluid within the heat exchanger, and energy generation systems incorporating the heat exchanger. The heat exchanger is particularly useful in combina... | 03/11/1980 |
| 4191901 | Method and system for converting solar energy into electricity There is provided a method and a system for converting solar energy into electricity by means of a magnetohydrodynamic (MHD) generator. The method comprises providing an organic liquid reservoir having an ejector nozzle positioned at the inlet port of a M... | 03/04/1980 |
| 4189922 | Converting solar energy into electric power A method for converting solar energy into electric power is disclosed, in which air, preheated and precompressed is additionally heated in a solar heater and sent to work in a turbine unit connected to an electric power generator.... | 02/26/1980 |
| 4177020 | Heat-powered water pump A heat-powered water pump including a flash boiler and a metering device for metering a predetermined quantity of condensate to the flash boiler. A flexible pumping member is enclosed in a pumping chamber and is expanded by the vapor to force water from t... | 12/04/1979 |
| 4171617 | Solar thermal electric systems A solar thermal electric power system, in which a solar collector, a heat storage vessel filled with a thermal storage material adapted to effect a phase change between solid and liquid internally, a turbine, a condenser, a condensate storage tank, a feed... | 10/23/1979 |
| 4161657 | Hydrogen supply and utility systems and components thereof An energy system that is responsive to and converts radiant energy into direct current electricity at a pair of output connectors which are maintained at a potential difference. The hydrogen and oxygen-generating electrodes of an electrolysis cell are cou... | 07/17/1979 |
| 4146057 | Thermal buffer system A quantity of aluminum is in heat exchange contact with a potassium loop and a steam/water loop. The potassium loop includes a solar energy collector and the solar-heated potassium melts the aluminum to store thermal energy as latent heat of fusion. The s... | 03/27/1979 |
| 4132074 | Paving and solar energy system and method Paving and solar energy utilization systems and methods disclosed herein include a fluid carrying conduit embedded in paving such as in a roadway or roofing exposed to solar energy. Fluid circulated through the conduit is heated by the paving and cools th... | 01/02/1979 |
| 4122356 | Solar heat pipe feedback turbogenerator Radiant heat is converted to electricity by a heat pipe - turbogenerator combination. Specifically, a heat pipe having heat-sorbing wicking or other material in an evaporation section thereof from which the heat pipe liquid in contact with or adjacent sai... | 10/24/1978 |
| 4117682 | Solar collector system A solar collector system uses a hexagonal field module of heliostatic mirrors with each heat receptor tower being located outside of its associated module. Each mirror includes a reflecting film held down electrostatically (for easy replacement) and prote... | 10/03/1978 |
| 4110986 | Systems for making use of the energy carried by a fluid and supplied thereto by solar energy A system for making use of the thermal energy carried by a fluid and which is supplied to the fluid by a solar energy detector which converts the solar energy into heat. The system basically comprises a solar energy detector which heats the fluid and valv... | 09/05/1978 |
| 4095428 | Solar electric power plant and an improved thermal collector of solar energy A thermal collector of solar energy includes an elemental semiconductor material to absorb a substantial portion of the energy of solar radiation that is incident upon the material. At longer wavelengths, such material reradiates absorbed energy at a subs... | 06/20/1978 |
| 4095118 | Solar-MHD energy conversion system A solar energy conversion system includes a centrally positioned tower supporting a solar receiver, and an array of pivotally mounted reflectors disposed circumferentially therearound which reflect earth incident solar radiation onto the receiver which th... | 06/13/1978 |
| 4094147 | Circuit for the supply of condensable fluid to a solar engine In the improved supply circuit, provision is made for a "start-up" storage tank placed at a higher level than the heat exchanger and connected to a secondary circuit in portion of this latter which is located between the solar engine and the feed pump and... | 06/13/1978 |
| 4079591 | Solar power plant The specification discloses a Solar Power Plant which utilizes a sun-tracking parabolic collector and a plurality of energy storage and conversion devices, all of which are operated under the control of a novel energy management system. Allocation of ener... | 03/21/1978 |
| 4070861 | Solar reactor combustion chamber A solar reactor combustion chamber is disclosed which includes a concrete or other suitable housing having a reactor chamber and a combustion chamber therein. A solar intensifier, such as a parabolic reflector, is mounted on top of the reactor housing. Th... | 01/31/1978 |
| 4069674 | Power plant A steam turbine-generator power plant is described wherein solar energy is used to preheat feedwater to a steam generator. Two parallel feedwater supply branches are proposed for preheating the feedwater upstream from the steam generator. A first preheate... | 01/24/1978 |
| 4069673 | Sealed turbine engine A turbine engine provided within a hermetically sealed housing and operative as a closed system in response to applied solar or other thermal energy.... | 01/24/1978 |
| 4063419 | Energy production from solar ponds A method for obtaining solar energy in a useful form by utilizing solar ponds, the method comprising direct or indirect contact of hot liquid from the pond with a low boiling point immiscible working fluid for transfer of the heat energy from the liquid t... | 12/20/1977 |
| 4055948 | Solar thermal-radiation, absorption and conversion system The invention described herein is a Method and Process for the direct absorption of radiant solar-thermal energy by and within a radiant-heat absorbing fluid. More specifically, however, it is a total system for the direct absorption of radiant solar-ther... | 11/01/1977 |
| 4033134 | Heat engine A heat engine comprising a cylindrical heat chamber having an end wall of insulating material and on which is mounted a cylinder. An opening in the end wall communicates between the heat chamber and the cylinder. The cylinder is surrounded by a cooling ja... | 07/05/1977 |
| 4028893 | Open cycle solar energy system utilizing buoyancy as a conversion force An open cycle energy conversion system adaptable for use with, inter alia, solar collectors and other sources of available heat for increasing the temperature of a moving gas and employing a substantially vertically positioned gas expanding column compris... | 06/14/1977 |
| 4026112 | Solar reactor engine A solar reactor engine is disclosed which includes a concrete or other suitable housing having a reactor chamber therein. In one embodiment, the reactor chamber is cylindrical. A solar intensifier, such as a parabolic reflector, is mounted on top of the r... | 05/31/1977 |
| 3995429 | Apparatus for generating power using environmental temperature differentials A system of generating electric power derived from the energy of the sun, the atmosphere, the ground or the heat stored in ground water, whichever provides the greatest temperature differential with another adjacent source of energy. During the daytime wh... | 12/07/1976 |
| 3972183 | Gas dissociation thermal power system A gas dissociation solar thermal power system in which SO3 in a solar furnace is heated by a sun ray reflector. The SO3 dissociates into SO2 + O2 + absorption of heat. The SO2 + O2 gas is d... | 08/03/1976 |
| 3962873 | Solar steam generator Low pressure steam generated by a solar collector is compressed to raise its temperature and pressure. The compressor is driven by an engine which is, in turn, driven by a combustible fuel. Shaft work produced from the fuel is used directly to drive the c... | 06/15/1976 |
| 3952519 | Heat transfer system employing supercooled fluids In a system for converting heat energy to mechanical energy, a working fluid is vaporized and then permitted to expand in an expander. The vaporized working fluid is introduced to a condenser including a container and a conduit for guiding the working flu... | 04/27/1976 |
| 3950949 | Method of converting low-grade heat energy to useful mechanical power Specifically disclosed is a method of operating a vapor cycle engine wherein a vaporizable fluid is circulated in a closed loop serially through a first heat source, a second heat source, an expansion vapor engine, a condenser, and back to the first heat ... | 04/20/1976 |
| 3937599 | Pumping system using solar energy A pumping system comprising a pumping unit formed by a motor and a pump and adapted to raise a liquid from an underground level to a utilization level, a vaporizable fluid flowing in a closed circuit between a solar evaporator and a condenser, the said mo... | 02/10/1976 |
