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A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 8113193 | Reciprocating solar engine with attached solar windows A reciprocating solar engine includes a) a seesawing platform having a central fulcrum support upon which the platform is moveably positioned to reciprocally rotate through a predetermined arc b) a first solar heat-receiving closed container located on the platform ... | 02/14/2012 |
| 7434577 | Solar air heater This invention provides novel devices and methods for the heating of air with solar radiant energy. The devices of the present invention feature a housing partitioned into essentially isolated sections wherein the sections are in fluid communication with each other ... | 10/14/2008 |
| 7325542 | Heating and cooling system A heating and cooling system for an enclosure includes a positionable solar panel assembly that supplies power to all the power consuming components of the system. A mountable sun tracking assembly continuously detects the position of the sun and adjusts the positio... | 02/05/2008 |
| 7252084 | Solar tracking system A solar tracking system has a first set of solar heat gain transducers (700) that produce respective first output signals to drive a reversible first motor (300) for changing a vertical angle of a solar collector (200); and a second set of solar... | 08/07/2007 |
| 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 |
| 7077123 | Isolation shield system, insolation shield and method The present invention relates to an insolation shield (3) which is arranged to be placed in connection with a building (1) to suppress solar radiation incident on the building. The insolation shield (3) comprises at least one shield element (... | 07/18/2006 |
| 6966184 | Photovoltaic power generating apparatus, method of producing same and photovoltaic power generating system A photovoltaic power generating apparatus is provided which comprises a single solar cell element formed on a substrate and a plurality of power conversion devices individually connected to the solar cell element for converting an output of the solar cell element. | 11/22/2005 |
| 6955463 | Window covering display device There is provided a display device which comprises a display housing. The display housing has an internal compartment defined by a plurality of connected panels. At least one of the panels is a heat-conducting panel which simulates a glass window. Moreover, a heat s... | 10/18/2005 |
| 6941702 | Rainwater collection and dispensation system A rainwater collection and dispensation system for economically conserving water usage by using collected rainwater. The rainwater collection and dispensation system includes a gutter being adapted to be mounted along an edge of a roof of a building structure; and a... | 09/13/2005 |
| 6688303 | Method and system for controlling operation of an energy conversion device A method and system is described for controlling a solar collector. A microprocessor receives inputs from one or more sensors in the system and determines the level of operation of an energy conversion device. If the level of operation reaches a predeterm... | 02/10/2004 |
| 6662801 | Celestial tracking apparatus and method of controlling wind stow therefor A celestial tracking apparatus (20) has a support (26), a tracking assembly (28) coupled to the support (26) by an azimuth pivot (36), a collector assembly (30) coupled to the tracking assembly (28) by an elevation pivot (38), a wind-speed sensor (172), a... | 12/16/2003 |
| 6648628 | Gas flow muffling device The invention is a device for muffling the sound of escaping gas from a dispensing pipe for natural gas or any similar gaseous fuel, where the dispensing pipe has one or more first orifices. The device is an insert that may be placed into the dispensing p... | 11/18/2003 |
| 6533026 | Heat removing system This is a heating and cooling system, and method that utilizes the roof of a home or building as a solar collector. A heat barrier material is secured to the inside free edges of the roof rafters to reflect radiant heat into air flow passage ways formed b... | 03/18/2003 |
| 6244264 | Non-imaging optical illumination system A passive solar collector has a reflector or a plurality of reflectors in a tube that is in a partial vacuum and is entirely or partly transparent. An absorber collects light reflected by the reflector or plurality of reflectors and delivers energy from t... | 06/12/2001 |
| 6231197 | Heliostat for sunlight collecting system An azimuth sensor unit 15 and an altitude sensor unit 16 have pairs of optical sensors 18 and 20, respectively, disposed along their respective directions, which pair of optical sensors are disposed toward the sun in the form of a tapered section narrower... | 05/15/2001 |
| 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 |
| 5746588 | Dual inlet gas burner A burner for a gas fireplace wherein a plurality of apertures are provided along the length of an enclosure and gas inlets are provided for introducing gas into both ends of the enclosure. Movable members are disposed over air inlet holes at each end for ... | 05/05/1998 |
| 5654813 | Infrared receiver and system for controlling a module The invention is directed to a low power infrared receiver system capable of battery operation for controling and operating a module, such as a gas fireplace valve. The system includes in one form a universal remote type infrared transmitter for transmitt... | 08/05/1997 |
| 5578140 | Solar energy plant The disclosure concerns various improvements in a solar energy plant of the kind in which incoming solar radiation is concentrated by a Fresnel reflector, i.e. a field of concentrating mirrors, and the concentrated radiation is focused into a solar receiv... | 11/26/1996 |
| 5551991 | Compact solar energy collector Compact solar energy collector that incorporates into the same housing the collector itself and an accumulator in the shape of a parallelepiped and divided by walls to better withstand water pressure, being then complemented with the remaining conventiona... | 09/03/1996 |
| 5531215 | Device for absorbing radiant heat energy A device for absorbing heat energy, in particular a solar panel, includes a housing in the form of a frame-shaped rack. The housing has a cover which allows the radiant energy to enter. Several collector tubes are disposed below the cover and between a di... | 07/02/1996 |
| 5524381 | Solar heated building designs for cloudy winters A building including high efficiency transparent insulation and optical shutter solar collector (HETIOSSC) to effectively control heat loss and gain in a passively-solar climate control system. HETIOSSC includes a layer of protective glazing, a transparen... | 06/11/1996 |
| 5452710 | Self-sufficient apparatus and method for conveying solar heat energy from an attic A self-sufficient apparatus and method for conveying solar heat energy from an attic (20) under a solar energy absorbing roof (10) to a place remote from the attic. A synergetic combination of in-attic air controlling devices such as fans and motorized ve... | 09/26/1995 |
| 5347985 | Constant temperature solar water heater switch A constant temperature solar water heater switch, for operating a solar water heating element, using an electrical motor, and a water pump, the water pump pumping water from a water source to the solar water heating element, which uses the solar rays to h... | 09/20/1994 |
| 5005557 | Heat-insulating building and/or light element A building and/or light element comprises at least two parallel wall elements (1) between which support elements (2) for the formation of an evacuated interspace (3) are placed and the wall elements are connected by a flexible seal on the edges. The dista... | 04/09/1991 |
| 4986343 | Thermal insulating shade A thermal insulating shade for interior use comprises at least one envelope with substantially parallel side panels which hold insulating air therebetween, at least one of the side panels having a highly reflective surface for reflecting away the sun's he... | 01/22/1991 |
| 4905665 | Device for converting solar energy into process heat A device for converting solar energy into process heat has a number of heat xchanging pipes traversing a heat exchanger chamber. A first partial stream of gas to be heated is delivered to inlets of the pipes via an upper distribution chamber, and the first... | 03/06/1990 |
| 4881219 | Control device for a sunshade blind responsive to meteorological phenomenon The present invention relates to an automatic device for controlling a blind or a smaller device for protection against the sun. This device comprises an electronic comparator 3, whereof a first input E+ is connected to a pick-up 1 provided for measuring the i... | 11/14/1989 |
| 4852547 | Heat storage The present invention comprises heat-storage means to store heat in a tank of liquid, and back-up heat means. The back-up heat means comprise more than one source of heat, which can produce back-up heat and heated liquid at various temperatures (for examp... | 08/01/1989 |
| 4717227 | Solar ray collecting device including protective cover and filter A solar ray collecting device for use in space includes a heat-conductive supporting base plate provided with a large number of adjacent hexagonal recess portions, a large number of optical systems installed on each of the recess portions, a large number ... | 01/05/1988 |
| 4692744 | Glazing unit alarm systems A glazing unit alarm system includes a light transmitting electrically conductive coating which extends over at least most of the area of a glazing panel and forms part of an alarm circuit. Changes in the resistance of the coating, occasioned by breakage ... | 09/08/1987 |
| 4666376 | Solar powered pump assembly An apparatus for converting low level thermal radiation into mechanical work. The apparatus incorporates a collector (11) to receive and concentrate low level thermal energy to generate a pressure by vaporizing a working fluid. An expansible chamber (70),... | 05/19/1987 |
| 4662354 | Heating and/or cooking device using solar energy A device to be used for space heating and/or cooking comprises a solar collector connected via an inclined heat pipe to a heat store. A thermal load, in the form of a heat-emitting plate, either is in direct contact with the solar collector or the heat st... | 05/05/1987 |
| 4649899 | Solar tracker Apparatus for tracking the apparent motion of the sun utilizes a plurality of solar cells to generate an electrical signal when exposed to solar radiation. The solar cells are mounted inside a plurality of trough-like shadow boxes which permit exposure of... | 03/17/1987 |
| 4625867 | Hot air oven for food-loaded cartridges A hot air oven for heating food-loaded cartridges, each constituted by a stack of sealed trays nested within an open carton whose side walls have holes therein to admit heated air, the trays containing pre-cooked meals. The oven includes a rotating turnta... | 12/02/1986 |
| 4621612 | Solar pond and method of establishing the same A solar pond of large scale comprises an intake and a return outlet which are not fixedly disposed but are movable in the direction of water depth. The intake and the return outlet are connected through a saline water circulation loop in which necessary s... | 11/11/1986 |
| 4621615 | Energy control device A heat transfer sensing apparatus for opening window drapes and blinds determines whether the net heat flux is positive or negative. The apparatus includes first and second temperature sensing devices which are mounted adjacent a window. Both of the devic... | 11/11/1986 |
| 4552205 | Dual storage heating and cooling system A solar heating and cooling system is disclosed which provides substantially consistent levels of temperature within a preselected range in an air space of an enclosed structure. The system includes a first store which functions as a heat source and a sec... | 11/12/1985 |
| 4519379 | Control system for solar heaters A solar-heating system incorporating a photosensitive sensor locatable remotely from the collector panels but similarly oriented with respect to the solar-energy source, such photosensitive sensor being biased by one or more biasing resistors of predeterm... | 05/28/1985 |
| 4512334 | Portable thermal exchange system A portable thermal collector and storage apparatus is disclosed as comprising a container for receiving a phase change material for selectively absorbing and emitting thermal energy, a base for supporting the phase change container with respect to a floor... | 04/23/1985 |
