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| Number | Title | Issue Date |
| 5540217 | Solar energy concentrating system having replaceable reflectors The present invention relates to an improved solar energy concentrating system incorporating replaceable solar energy concentrating reflectors. Prior systems typically required a structurally stable solar energy concentrating panel. The present invention ... | 07/30/1996 |
| 5479009 | Highly efficient collection optical systems for providing light detectors such as photodetectors and the like with hemispherical fields of view This invention involves a novel egg-shaped hollow dual-compound conical light-ray concentrator with mirror-like inner walls (preferably tandem substantially inverted paraboloidal and ellipsoidal conical sections) for receiving light through one aperture e... | 12/26/1995 |
| 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 reflected by the reflector and arranged in a cylindrical array ... | 11/22/1983 |
| 4332240 | Solar-energy-powered sun tracker Apparatus for following the sun using the sun's radiant energy to heat a fluid-containing sensor to create a pressure which is used to rotate the apparatus against a spring force provided by an expansion bellows. The sunlight is permitted to strike the se... | 06/01/1982 |
| 4324225 | Solar tracking device Solar energy conversion apparatus comprises a solar energy utilization surface, a reflective solar energy concentrator, a tracking device operable to cause the concentrator to track the sun and thereby concentrate solar energy on the utilization surface, ... | 04/13/1982 |
| 4263892 | Heat sensing means, particularly for solar water heating apparatus This invention relates to temperature differential sensing means particularly suitable for sensing temperatures at respective opposite sides of a heat shield whereby alignment of the shield with respect to a heat source may be monitored so as to enable th... | 04/28/1981 |
| 4171695 | Image collapsing concentrator and method for collecting and utilizing solar energy A solar energy concentrator comprising a cylindrical Fresnel lens, a specially shaped and positioned reflecting mirror, and a shaped tubular receptor for conveying the collected energy to terminals is described. These concentrators are arrayed parallel an... | 10/23/1979 |
| 4164934 | Elliptical solar reflector A fixedly supported, low cost solar energy collecting device having an elliptical solar reflector is provided which is capable of efficiently collecting and concentrating solar energy during all seasons and sun declinations notwithstanding complete elimin... | 08/21/1979 |
| 4149521 | Solar energy collection system A fixed, linear, ground-based primary reflector having an extended curved sawtooth-contoured surface covered with a metalized polymeric reflecting material, reflects solar energy to a movably supported collector that is kept at the concentrated line focus... | 04/17/1979 |
| 4099516 | Solar energy pick-up The present invention relates to solar energy pick-ups composed of a fixed cylindrical mirror having an elliptic transverse section and a heat collector parallel to the generatrices of the cylinder, placed at the bottom of the mirror, in the plane paralle... | 07/11/1978 |
| 3957031 | Light collectors in cylindrical geometry A device is provided for collecting electromagnetic energy developed by an energy source of finite dimension and of finite distance from the collection device. It includes an energy absorber positioned between two side walls which reflects substantially a... | 05/18/1976 |
