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| Number | Title | Issue Date |
| 7240675 | Parabolic trough collector The parabolic trough collector has a receiver formed by several single absorber tubes (13). The single absorber tubes (13) are supported by absorber tube supports (14) and surrounded by a glass tube (15). Because of different expansion be... | 07/10/2007 |
| 7207327 | Feedback control method for a heliostat An instrument for a solar energy system including a receiver and a heliostat to reflect solar energy on to the receiver. The instrument includes a first element adapted to form an image of the sun, a second element adapted to form an image of the receiver, and a det... | 04/24/2007 |
| 7000608 | Solar energy system A solar plant with at least two solar units (10xx) where each of the solar units (10xx) comprises a securing device (12) and a swivel-located supporting structure (14) mounted on it, on which solar modules and/or solar collectors (16 | 02/21/2006 |
| 6827445 | Sun-tracking daylighting apparatus A solar lighting apparatus of the sun tracking type for guiding sunlight into a building by using light reflecting means (30), the apparatus comprising the light reflecting means (30) for reflecting sunlight, drive means (60) for driving the lig... | 12/07/2004 |
| 6704607 | Method and apparatus for controllably positioning a solar concentrator A method, apparatus, control system and computer program product are provided for controllably positioning the solar concentrator. The method, apparatus, control system and computer program product determine the respective errors generated by more and dif... | 03/09/2004 |
| 6465725 | Tracking type photovoltaic power generator and error correction method of its built-in clock A tracking type photovoltaic power generator includes a clock for clocking a time and a sun direction sensor for outputting a signal indicative of a sun direction, a controller which calculates a first time when the sun the sun arrives at a culmination az... | 10/15/2002 |
| 6442937 | Solar receiver adaptive tracking control A solar power system having a solar concentrator for concentrating solar energy, a receiver for converting the solar energy into another form of energy, and a control system for controlling the flux input to the solar receiver. The control system includes... | 09/03/2002 |
| 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 |
| 5977475 | Converging solar module There is provided a converging solar module of a simple structure which can accurately track the sun and efficiently generate electricity. A converging solar module comprises an electricity generating converging lens (10) made of resin having a flat shape... | 11/02/1999 |
| 5347986 | Solar powered high pressure steam generator A point focus distributed receiver system for generating high-pressure steam by means of solar energy collection is disclosed. The cradle within which a gimbal mounted concentrator dish rotates is designed to withstand high wind forces by delivering all f... | 09/20/1994 |
| 4942292 | Apparatus for following sun light In apparatus for following sun light, at least two pairs of diametrically facing light-receiving elements (30a, 30c and 30b, 30d) are provided along the periphery of a circular end plane of incidence (24) of an optical fiber cable (20) where sun light is ... | 07/17/1990 |
| 4915093 | Container for accommodating a solar ray-collecting device A container for accommodating a solar ray-collecting device comprises a cylindrical body and a transparent dome mounted on the body for accommodating therein the solar ray-collecting device. A fin for mounting the dome on the cylindrical body is unitarily... | 04/10/1990 |
| 4821705 | Solar tracking system A solar energy conversion apparatus which includes a reflective parabolic trough which tracks the sun the control means therefor being such that the trough rotates about a north-south axis alternately to east and west extreme positions until the driving m... | 04/18/1989 |
| 4807592 | Solar tracking system A solar energy conversion apparatus which includes a reflective parabolic trough which tracks the sun the control means therefor being such that the trough rotates about a north-south axis alternately to east and west extreme positions until the driving m... | 02/28/1989 |
| 4794245 | Position sensor A radiant energy angle sensor is provided wherein the sensitive portion thereof comprises a pair of linear array detectors with each detector mounted normal to the other to provide X and Y channels and a pair of slits spaced from the pair of linear arrays... | 12/27/1988 |
| 4769531 | Direction finder system with inclined detectors A direction finding system for infrared radiation includes a set of four detectors uniformly positioned about the Z axis of a cartesian coordinate system with individual ones of the detectors having radiation detection surfaces facing the Z axis and being... | 09/06/1988 |
| 4658805 | Thermo-hydraulic power supply A radiant energy utilization device including an aiming detector sensing the relative angle of radiation received and outputting signals in accordance therewith to control aiming of the device or portions thereof or for other purposes.... | 04/21/1987 |
| 4601282 | Automatic solar collector system An automatic solar collector system useful for heating and storing a heating fluid such as, for example, water. The automatic solar collector system of this invention is characterized by its construction including a photo cell-actuated hydraulic cylinder ... | 07/22/1986 |
| 4483324 | Heat collecting and heat loss preventing apparatus Solar heating apparatus comprises: (a) a generally horizontally elongated tank to contain liquid, the tank being solar radiation absorbing, and low intensity infra-red emitting, (b) a generally longitudinally horizontally elongated container extending about th... | 11/20/1984 |
| 4452232 | Solar heat boiler A boiler receiving solar heat from an array of reflectors arranged to concentrate the heat radiated from the sun on a small surface inside said boiler. The heated surface of the boiler being constructed to transfer the radiation heat to a cooling fluid as... | 06/05/1984 |
| 4440150 | Heliostat control An improvement in a system and method of controlling heliostat in which the heliostat is operable in azimuth and elevation by respective stepper motors and including the respective steps or means for calculating the position for the heliostat to be at a c... | 04/03/1984 |
| 4380995 | Solar energy converters and absorbers therefor Solar energy converters convert solar radiation into usable heat energy by means of a reflector which collects and focuses the solar radiation onto an absorber provided with an internal chamber through which a heat exchange fluid may be passed. As the abs... | 04/26/1983 |
| 4371135 | Solar array spacecraft reflector A solar energy reflector useful in space-oriented apparatus for reflecting the rays of the sun to a panel carrying solar cells. The solar cells generate direct current power for conversion into microwave energy for transmission to the earth or other space... | 02/01/1983 |
| 4354484 | Solar collection system A solar energy collection system for receiving and collecting a concentrated supply of available energy from the sun includes a reflector having an internal structural frame covered by a thin deformable film at the front and a membrane cover enclosing the... | 10/19/1982 |
| 4345582 | System for the utilization of solar energy A dynamic system for the utilization of solar energy which is most of the time in the ideal position in relation to the sun. Said device comprises at least one unit consisting of a solar collector and a stand carrying said collector, means for rotating th... | 08/24/1982 |
| 4334521 | Solar energy system Solar energy system incorporating a dirigible motor-driven collector and an electronic sensor for turning the collector to follow the sun. The collector is turned progressively during the day to occupy successive positions during predetermined time period... | 06/15/1982 |
| 4333446 | Solar concentrator A solar concentrator having an open framework formed as a geodesic dome. A rotatable support axle extends substantially diametrically across the dome and has the opposite ends thereof supported on the framework. The support axle defines a first rotational... | 06/08/1982 |
| 4320288 | Solar tracking system A dual mode solar tracking method and system in which a sensor of radiation from the sun normally tracks the sun at a rate determined by a priori information, departure from normal tracking and correction for tracking rate errors being introduced only whe... | 03/16/1982 |
| 4314545 | Solar hot water generator A solar hot water generating system is disclosed which comprises a vertically pivotable heat exchanger automatically pivotable by means of a timer-actuated electric motor. The heat exchanger is fluidly connected to an insulated storage tank which retains ... | 02/09/1982 |
| 4300533 | Design of hydraulic circuits for the automatic operation of heliostats The present invention relates to automatic thermal/hydraulic logic system for continuously positioning a heliostat in alignment with the sun in both the horizontal and vertical planes. Solar radiation is monitored by phials which produce signal pressures ... | 11/17/1981 |
| 4290411 | Solar energy collector sun-tracking apparatus and method A solar energy collector is mounted for adjustable azimuth rotation about a vertical axis and adjustable elevation tilting about a horizontal axis for pointing toward the sun. The collector is driven for rotation about the vertical axis and for tilting ab... | 09/22/1981 |
| 4282858 | Solar energy system and method A solar energy fluid heating system and method wherein sunlight is focused on the one end of a number of light pipes and directed by the other ends of the light pipes onto a heat conductive surface at the bottom of a number of tubes within a fluid storage... | 08/11/1981 |
| 4226502 | Self-contained solar tracking device A trough type solar collector or other body is mounted to rotate about a generally north-south pivotal axis. A balance weight is supported on an elongated heat sensitive beam anchored at its ends to the westerly side of the collector. The beam is adapted ... | 10/07/1980 |
| 4220137 | Solar energy collecting system The solar energy collecting system of the preferred embodiment of the present invention includes two sets of louvers, adapted for being mounted in a window opening. A first set of louvers is mounted vertically, each louver having a pivot point at its top ... | 09/02/1980 |
| 4220135 | Periodic solar collector The present invention relates to a solar energy collector which includes a housing which has two solar absorption panels on the exterior surface thereof and an energy collection chamber therein. A motor is coupled to the housing for moving the solar absor... | 09/02/1980 |
| 4202322 | Solar energy collector and heat exchanger A solar energy collection system including a number of parabolic section reflectors mounted for rotation about their lines of focii. A drive system continuously rotates the reflectors at a one cycle per day rate in one form. Positioned at the line of focu... | 05/13/1980 |
| 4187834 | Solar heating system A solar heating system for heating a fluid with the infrared rays of the sun to provide a thermal supply to a building usable for heating the building and the domestic hot water supply thereto may have a solar heat absorbing panel for heating the fluid, w... | 02/12/1980 |
| 4158354 | Solar energy collection system A solar energy collection system utilizing a fluid which dissociates endothermically and recombines exothermically is described. The preferred fluid is ammonia. Solar radiation is focussed onto absorber-reaction vessels from many paraboloidal mirrors. Mea... | 06/19/1979 |
| 4147154 | Solar heat tracking and collecting apparatus Solar heat tracking and collecting apparatus including a frame, means for rotating the frame in altitude and azimuth, a solar heat concentrator mounted on the frame and a solar energy sensing means disposed on the frame and operable to control the frame r... | 04/03/1979 |
| 4090498 | Solar heater A solar heater is disclosed herein for increasing the temperature of water which provides a conical array of a tubular coil carried on a circular frame. Drive mechanism is operably coupled to the frame for maintaining the water conducting coil array subst... | 05/23/1978 |
