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 |
| 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 cell is movably installed within a transparent cooling tube... | 01/25/2000 |
| 5075022 | Heat transfer fluids A heat transfer fluid which maintains a low hydrogen permeation rate at temperatures of 350°-400° c. or higher and its pumpability at temperatures of -10° C. or lower is provided. The fluid is especially useful in solar energy collection applications. ... | 12/24/1991 |
| 4846151 | Solar collectors A solar energy collector comprising a solar energy absorber, a light transmitting top plate spaced apart from and in a plane parallel to the solar energy absorber, and an array of light transmitting cells intermediate to and in a plane perpendicular to th... | 07/11/1989 |
| 4765914 | Method of and apparatus for reduction of turbidity in a body of fluid The turbidity of a fluid is reduced by adding a treatment solution containing a flocculation agent to said fluid. The treatment solution has a density different from that of the fluid. It is added at selected locations in the fluid such that the differenc... | 08/23/1988 |
| 4652378 | Method of and apparatus for reduction of turbidity in a body of fluid The turbidity of a fluid is reduced by adding a treatment solution containing a flocculation agent to said fluid. The treatment solution has a density different from that of the fluid. It is added at selected locations in the fluid such that the differenc... | 03/24/1987 |
| 4611577 | Black-water solar disk A flat circular plate glass window and a conical circular metal disk mounted below the window so as to form an expansion chamber through which a black-dye solution of water and alcohol circulates. Water enters the chamber through a 1 mm peripheral gap bet... | 09/16/1986 |
| 4512332 | Stable density stratification solar pond A stable density-stratification solar pond 10 for use in the collection and storage of solar thermal energy including a container 12 having a first section 14 characterized by an internal wall of a substantially cylindrical configuration and a second sect... | 04/23/1985 |
| 4499893 | Solar heat receiver A receiver for converting solar energy to heat a gas to temperatures from 700°-900° C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is f... | 02/19/1985 |
| 4497724 | Solar energy storage materials This invention relates to a solar energy storage material comprising N,N'-bis(phenylacetyl)indigo dissolved in a polar solvent. Of the indigo derivatives capable of storing the solar energy by the photoisomerization from trans-isomer to cis-isomer of the ... | 02/05/1985 |
| 4475537 | Nontracking parabolic collector apparatus A mirror collector having a generally parabolic surface terminating near the vertex in a circular or cylindrical curve, a collector tube composed of a clear glass outer tube for energy admission and for passing an inner fluid, the collector being generall... | 10/09/1984 |
| 4473484 | Material for conversion of solar energy A material comprising an organic compound capable of inducing its own photo-isomerization, a photosensitizer, and a side-reaction inhibitor exhibits an ability to convert solar energy into another form of energy and store it in such form.... | 09/25/1984 |
| 4459976 | Heat exchanger or solar collector A heat exchanger unit comprising a particulate heat exchanging mass or pack consisting of mechanically immobilized particles having no more than 750 microns mean diameter and having a thermal diffusivity constant of at least 0.5 cm2 /sec at 20Â... | 07/17/1984 |
| 4454865 | Liquid metal solar power system A solar power system for cogenerating heat and electricity is disclosed. An improved solar collector includes a transparent reflector envelope through which a reflective liquid metal such as mercury is circulated. The liquid metal is preheated as it focus... | 06/19/1984 |
| 4406804 | Heat accumulating material The heat accumulating material provided according to this invention makes use of the latent heat of fusion of sodium acetate trihydrate, and it comprises, as blended in a system consisting of sodium acetate and water, at least one nucleation catalyst sele... | 09/27/1983 |
| 4368725 | Solar energy collector A solar window which can alternatively act either as a passive solar heat collector or an active solar heat collector. A substantially transparent pair of panels are mounted in opposed position to each other and define a chamber therebetween. When it is d... | 01/18/1983 |
| 4349446 | Glauber's salt heat storage compositions, crystal habit modifiers Degradation of heat storage capacity in Glauber's salt heat storage compositions on thermal cycling is substantially decreased by addition of small amounts of crystal habit modifiers.... | 09/14/1982 |
| 4320743 | Solar energy system and solar collector therefor A solar collector for a solar energy system comprises a solar absorber for converting solar radiation into heat, a heat transfer fluid for transferring heat from the solar absorber, at least one passage for flow of the fluid in contact with the solar abso... | 03/23/1982 |
| 4307708 | Solar heated building A solar heating system for a building is disclosed. The solar heating system includes a solar collector and conduits leading from the solar collector to a plurality of heat sinks. The conduits contain an antifreeze solution for carrying the heat from the ... | 12/29/1981 |
| 4300536 | Auxiliary hot water boiler with solar heater and heat exchange system An auxiliary hot water boiler and heat exchange system including a solar heater and adapted for use with a conventional, domestic closed loop hot water heating system and a conventional, domestic hot water heater. A first heat exchanger connected with a s... | 11/17/1981 |
| 4290417 | Solar heat system using gravitational circulation of heated transfer medium A solar heating system in which the heating transfer medium is circulated from the heat absorbing member through the heat exchange area by means of gravitational forces which are augmented by the use of a transfer medium containing additives which change ... | 09/22/1981 |
| 4278075 | Process and device for the recuperation of heat from selected ranges of the solar spectrum A method of recuperating heat in the partial range of the solar radiation spectrum including the step of mixing variously colored organic pigments into a fluid circulated through a hollow body, said fluid further including an antifreezing medium which is ... | 07/14/1981 |
| 4278073 | System, method and apparatus for storing and converting solar energy into heat and/or shaft work A system, method and apparatus for converting solar energy into heat and/or shaft work and employing two working fluids in admixture is described. One fluid has a relatively low boiling point and is capable of being readily converted to a vapor at low, sy... | 07/14/1981 |
| 4273098 | Transparent composite laminar structure, solar collector and method An improved transparent laminar structure useful as a window in a solar collector having an absorber characterized with a low absorption/emission ratio is described. The structure includes a glass substrate, a particularly defined infrared-reflecting (IRR... | 06/16/1981 |
| 4244351 | Solar collection system The concentration of the solute in solution in a saturated non-convecting solar pond is greatest at a lower hotter level decreases continuously toward a higher cooler level and is saturated at all levels, thus preventing solute diffusion. In the customary... | 01/13/1981 |
| 4244148 | Process and device for air-conditioning greenhouses The invention relates to a process for air-conditioning a greenhouse or the like for the cultivation of plants, due to the solar energy which is picked up during the day, wherein isothermic containers are disposed inside the greenhouse, which contain a bo... | 01/13/1981 |
| 4215672 | Method and an installation for the air-conditioning of greenhouses and frames Solar radiations having longer wavelengths than those which are useful for plant development are selectively absorbed by an optical filter formed by two transparent walls which constitute at least part of the roofing structure of a greenhouse or "lean-to"... | 08/05/1980 |
| 4207865 | Passive solar heating device Space heating is disclosed which uses solar radiation as a thermal energy source to passively heat spaces within a structure which are substantially remote from direct solar radiation. A device according to the invention includes a radiation target, a clo... | 06/17/1980 |
| 4176655 | Solar energy collection system and apparatus for same utilizing latent energy storage fluid A solar energy collection and utilization storage system is constructed by using a lenticulated transparent element closed at the back to form channels which are used to carry an energy storage fluid. The lenticulations are designed as light trapping surf... | 12/04/1979 |
| 4146013 | Solar-exothermic solution heat pump A novel heat pump using solar energy and the heat of dilution of exothermic inorganic salts and organic compounds is disclosed. The heat pump is made up of four parts including a solar energy absorbing surface, a means for diluting the concentrated soluti... | 03/27/1979 |
| 4143642 | High temperature thermal storage system utilizing solar energy units A thermal storage system includes a solar collector. A first fluid circulating through the collector is piped to a heat exchanger wherein heat in the first fluid is transferred to a second fluid circulating through a heat pump circuit. The temperature of ... | 03/13/1979 |
| 4134393 | Solar energy collection Apparatus and methods for concentrating and collecting solar energy are disclosed. In accordance with the invention, solar energy is concentrated by economical refringent lenses or lens systems including fluid lenses and/or Fresnel-type lenses. The lenses... | 01/16/1979 |
| 4126123 | Solar energy collector including a weightless balloon with sun tracking means A solar energy collector having a weightless balloon, the balloon including a transparent polyvinylfluoride hemisphere reinforced with a mesh of ropes secured to its outside surface, and a laminated reflector hemisphere, the inner layer being clear and al... | 11/21/1978 |
| 4109638 | Solar energy converter carousel A solar energy collector and converter carousel comprising a plurality of elongated reflectors mounted on a platform for arcuate movement and mounted for further movement each around a heating tube arranged in the liner focus of the reflectors, the carous... | 08/29/1978 |
| 4108373 | Method and an installation for the air-conditioning of greenhouses and frames Solar radiations having longer wavelengths than those which are useful for plant development are selectively absorbed by an optical filter formed by two transparent walls which constitute at least part of the roofing structure of a greenhouse or "lean-to"... | 08/22/1978 |
| 4103674 | Modular solar collector system A modular solar collector system for solar radiation with a collector assembly including a series of overlapping collector pans defining a common fluid flow channel therealong exposed to solar radiation down which a heat transfer fluid flows to be heated ... | 08/01/1978 |
| 4100091 | Process and means for absorbing and releasing thermal energy by utilizing the allothopic change of endo-5-norbornene-2, 3-dicarboxylic acid anhydride with heat Thermal energy, in particular, solar energy is absorbed and released by utilizing the allotropic change of endo-5-norbornene-2,3-dicarboxylic acid anhydride with heat. The thermal energy is absorbed above 90° C, stored above 40° C, and released at tempe... | 07/11/1978 |
| 4080954 | Solar collector apparatus Solar collector apparatus comprising a panel of series connected all glass solar tubes, each tube having an outer evacuated glass cylindrical jacket with a half circular concave cylindrical reflector on its inner surface, blackened heat absorption glass t... | 03/28/1978 |
| 4047517 | Method and apparatus for receiving solar energy A method and apparatus for receiving solar energy reflected from a heliostat configuration in which the apparatus is formed of converging vanes defining cavities therebetween, and preferably converging towards a cavity. The vanes may partially or complete... | 09/13/1977 |
| 4038967 | Solar heating system and components thereof A lightweight, low cost, solar heat collecting system is provided for use with homes and other buildings. Solar heat collecting panels are mounted on a roof or other support and connected to the building's heating system. A liquid black body medium is pum... | 08/02/1977 |
| 3994675 | Chemical storage of radiant energy A system for the chemical storage of radiant energy in which either: A. 1,8-diaryl-1a,2,7,7a-tetrahydro-1,2,7-metheno-1H-cyclopropa[b]naphthalenes (1) are converted on heating to 1,2-diaryl-2a,8b-dihydrocyclobuta[a]naphthalenes (2) or 8,9-diaryl-benz... | 11/30/1976 |
