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| Number | Title | Issue Date |
| 7357132 | Positioning system and method of orienting an object using same A system (22) for orienting an object (28) relative to a base (24) to which the object (28) is rotatably coupled includes a braking surface (46) in fixed relation with the base (24). A brake (48) is engaged with the b... | 04/15/2008 |
| 6899096 | Autonomous heliostat An autonomous heliostat (1) having an independent autonomous control function and eliminating the need for a complicated control by a computer or the like is provided. The heliostat includes a target sensor (19) for controlling reflected light (R) from... | 05/31/2005 |
| 5829427 | Orientable pyramid-shaped solar collector device Solar collector device constituted by a pyramid-shaped structure comprising three faces 1, 2, 3 or more and a base 4. The face 1, on which various solar energy collecting means are mounted, is the only face used as a planar solar collector, the other face... | 11/03/1998 |
| 5707458 | Light converging solar module In order to generate sufficient electricity in a small light converging solar module, a power generation solar cell is provided with four movement solar cells, situated around it. Below the respective movement solar cells, electromagnets are situated, con... | 01/13/1998 |
| 4986255 | Apparatus pursuing the sun Apparatus for pursuing the sun to secure a constant sunlight energy source comprising a rotary shaft equipped with a light receiver; a thermo-deforming plate to force an area in proximity to its light collecting portion with a raised temperature to become... | 01/22/1991 |
| 4498456 | Self-tracking mechanisms for solar collectors A self-tracking mechanism for a solar collector comprises a plurality of sensor concentrators arranged side by side and a plurality of shape memory alloy coils each located at a position coincident with the focal line of the corresponding one of sensor co... | 02/12/1985 |
| 4396005 | Solar collector and control The absorber of a solar collector expands and contracts with varying insolation. A detector responsive thereto provides indication of the absorber temperature for controlling system parameters.... | 08/02/1983 |
| 4387702 | Solar tracking system An optical/mechanical solar tracking system having a lens for focusing the sun's rays for use by an element which changes shape in response to heat. The change of shape of the element is used to operate a mechanical brake which allows the tracking system ... | 06/14/1983 |
| 4365616 | Self-aligning solar collector A self-aligning solar energy collector which maintains its attitude facing the sun during the sun's daily and seasonal changes. Tension cables hold the collector in position, and are positioned so as to be out of equilibrium when off-axis solar radiation ... | 12/28/1982 |
| 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 |
| 4321909 | Servo-controlled solar tracking apparatus The invention provides solar conversion apparatus comprising concentrating means for concentrating solar energy onto at least one surface of a heat transfer conduit, tracking means for causing the concentrating means to track the sun, the tracking means i... | 03/30/1982 |
| 4304221 | Solar tracking device Solar tracking apparatus is disclosed which utilizes received solar energy to effect tracking movements, the apparatus comprising focussing means, mounting means mounting the focussing means for tracking movements of the sun, drive means including heat ex... | 12/08/1981 |
| 4283588 | Automatic guidance system for radiation-responsive systems The invention concerns a guidance, or tracking, arrangement which automatically adjusts the alignment of a radiation responsive system in accordance with the position of a movable radiation source. The arrangement utilizes two bodies able to transmit heat... | 08/11/1981 |
| 4274394 | Electromechanical solar tracking apparatus The invention relates to an electromechanical solar tracking device which tracks the position of the sun using paired, partially-shaded bimetallic elements.... | 06/23/1981 |
| 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 |
| 4117828 | Solar collector A solar collector having a housing and a plurality of substantially parallel heat absorbing vanes mounted in the housing immediately beneath a radiation transparent upper wall in such a manner as to form a plurality of relatively narrow channels through w... | 10/03/1978 |
| 4091799 | Self-tracking radiant energy collector A solar energy conversion device is provided with simplified means for tracking a source of solar energy. In the preferred embodiment, the tracking means is a predeterminedly shaped, heat expandable device operatively connected to an energy concentrator. ... | 05/30/1978 |
| 4089323 | Solar tracking device Solar energy converting apparatus is disclosed which comprises: (a) focussing means having a focal plane; (b) solar energy absorbing means located along the focal line of the focussing means; (c) a support structure including mounting means for rotating the focussi... | 05/16/1978 |
| 4044752 | Solar collector with altitude tracking A device is provided for turning a solar collector about an east-west horizontal axis so that the collector is tilted toward the sun as the EWV altitude of the sun varies each day. It includes one or more heat responsive elements and a shading means align... | 08/30/1977 |
| 4026269 | Solar heating systems A solar heating system for converting the sun's rays into heat, comprising a level heat absorbtive element whose underside is adapted to absorb solar radiation and to convert it into heat, the absorbtive element being provided with means to conduct the ab... | 05/31/1977 |
| 3982526 | Turning collectors for solar radiation A device is provided for turning a solar collector about the polar axis so that the collector is directed toward the sun as the sun tracks the sky each day. It includes two heat-expansive elements and a shadow plate. In the morning a first expansive eleme... | 09/28/1976 |
