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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 6807963 | Solar collector for heating air A solar heat collector constructed of non-conducting laminated and corrugated material to form a collector container with a bottom panel, a plurality of end panels that include a plurality of attached plenums with air inlet and exiting apertures and distribution ape... | 10/26/2004 |
| 6526965 | Solar energy collection panel for heating pools of water A radiant energy collection unit that can be used in a solar panel heating system is described. The energy collection unit comprises an absorbing panel secured to a base panel and forming a channel there between. The channel is in fluid communication with... | 03/04/2003 |
| 6099931 | Insulation system In order to provide an insulation system for internal thermal insulation of a pressure chamber which can be subjected to pressure by a gas flow, the system being constructed for arrangement at an inner surface of an outer jacket of the pressure chamber an... | 08/08/2000 |
| 6005185 | Coolant sealing structure for a solar cell A coolant sealing structure for a solar cell of which the sealing property is maintained with high reliability in use for a long period. A solar cell has its light receiving surface and a reinforced portion formed around the fringe portion of the light re... | 12/21/1999 |
| 5850831 | Loose-tight-loose twist, twisted-tape insert solar central receiver This invention reduces a molten salt, solar central receiver's size, pressure loss and cost by using a loose-tight-loose twist, twisted-tape insert inside the receiver's tubes to enhance the tube's heat transfer coefficient. This twist staging is designed... | 12/22/1998 |
| 4964395 | Apparatus and method for a solar radiation water heater A solar water heater has a plurality of generally triangularly shaped panels, the panels being assembled in a pyramidal or prism shaped structure on top of a base structure. Each panel includes a planar transparent structure for permitting the passage of ... | 10/23/1990 |
| 4617911 | Solar heater The present invention relates to a solar heater for heating a fluid which is constituted by a frame, a bottom plate, partitions, an upper plate of a transparent material, an inlet and an outlet for the fluid. The bottom plate is preferably made of a black... | 10/21/1986 |
| 4498458 | Solar heating panel A metal collector panel for use in a solar heating assembly of generally flat rectangular shape with a plurality of parallel channel members which run from the long edges of the panel and which act as baffles when the panel is enclosed between side and en... | 02/12/1985 |
| 4455999 | Solar hot-water heaters A solar energy collection system including a collector having an absorber structure in the form of a closed chamber defined between an upper sheet comprised of a thin metal sheet or foil and an under layer. The under layer includes a plurality of supports... | 06/26/1984 |
| 4441484 | Chemical heat pump A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy... | 04/10/1984 |
| 4426997 | Solar energy panel A solar heating panel utilizing an improved panel member construction to increase the strength and heat transfer capacity of the panel. The panel has upper and lower layers of individual interconnected panel members, with the panel members in the upper la... | 01/24/1984 |
| 4425903 | Chemical heat pump A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy... | 01/17/1984 |
| 4424803 | Solar collector A solar collector which includes a housing having its exposed side covered with a doubled walled reinforced light pervious sheet defining with the housing an heating plenum in which a plurality of spaced apart vanes are transversely supported between the ... | 01/10/1984 |
| 4403600 | Modular solar heating system An active solar heating system, adapted for retrofit installation in a building, consists of a solar collector module and a plenum box assembly, the latter including flexible conduits which are connected to the module for actively circulating room air the... | 09/13/1983 |
| 4393862 | Solar air duct A ready-to-assemble kit for a solar air heater is provided including a heating chamber composed of a set of side-by-side elongated, hollow, straight ducts having openings at opposite ends thereof; wherein a manifold is placed at each end of the set, where... | 07/19/1983 |
| 4368726 | Solar heating panel A solar heating panel for collecting solar heat energy and method for making same having a heat insulative substrate with a multiplicity of grooves and structural supporting ribs formed therein covered by a thin, flexible heat conductive film to form flui... | 01/18/1983 |
| 4366808 | Solar energy conversion apparatus Solar energy conversion apparatus including a housing portion, an energy absorbing portion, a fluid directing portion and a cover portion; the housing portion including a molded plastic pan member including a base section with upwardly extending spaced sp... | 01/04/1983 |
| 4344413 | Solar heating panel for metal buildings Entire or partial end wall or side wall sections of a corrugated metal building can be constructed economically with an integrated solar heating panel which can supply forty to sixty percent of winter heating during daylight hours. The solar heating panel... | 08/17/1982 |
| 4324227 | Solar heat collecting panel A solar panel unit for heating circulating fluid has a plurality of preferably rectangular lenses for focusing and concentrating the sun's energy onto a heat-absorbing body through which a heat-exchange fluid is circulated.... | 04/13/1982 |
| 4316449 | Solar heater The present solar heater has partially overlapped solar radiation-absorbing panels of high heat conductivity material inside a housing which has an air inlet and an air outlet in the bottom below different panels. An apertured longitudinal partition in th... | 02/23/1982 |
| 4315499 | Self-compensating solar collector The self-compensating solar collector comprises a base tray having inlet and outlet ports at opposite ends covered by a thin metallic diaphragm also serving as an heat absorbing plate. The interior of the tray includes inter-digitating walls or ribs defin... | 02/16/1982 |
| 4313429 | Solar air collector A solar-collecting apparatus constructed for placement against a structure as against a wall or roof. When installed in a wall or roof it may form a portion of the structure. The apparatus includes an elongate housing having sides and a backing and a tran... | 02/02/1982 |
| 4312328 | Movable solar collector A movable solar collector structured to move between a first or solar collecting position and a second or storage position as desired by the user. The movable solar collector may be in the nature of a closure member adapted to close an entryway in the fir... | 01/26/1982 |
| 4297990 | Solar collector A modular, air-to-air solar energy collector for adding heat to a circulating flow of air includes a frame-like enclosure and a solar radiation absorbing plate disposed within the frame-like enclosure. The enclosure includes a light-transmissive outer pan... | 11/03/1981 |
| 4290412 | Solar collector and process for its operation The invention relates to a solar collector assembly comprising a hollow housing body that is at least partially transparent. An absorber means is contained in the housing and a vacuum pump means is connected to the housing. A particular process of operati... | 09/22/1981 |
| 4286583 | Solar heater unit A solar heating unit having a thin metal sheet with multiple parallel ribs pressed into the sheet to form fluid conducting channels. The channeled sheet is sealed to a rigid backing panel, to which are secured inlet and outlet pipes extending across the o... | 09/01/1981 |
| 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 |
| 4262659 | Solar radiation absorbing panel A solar radiation absorbing panel including a flat base sheet of solar radiation absorptive material having a plurality of spaced sinuously shaped series of individual rectangular tab members extending away from the upper surface of the base sheet. Each o... | 04/21/1981 |
| 4186720 | Solar heating panel A solar heating panel, wherein the moving fluid is air, has a plurality of U-shaped flow paths from the inlet to the outlet. The flow paths are defined by L-shaped collectors which extend between a base sheet and a cover sheet. The cover is transparent to... | 02/05/1980 |
| 4156419 | Solar collector A flat plate collector of parallelepipedal configuration for a solar energy system, comprising a plane collective surface for the reception of solar energy with internal channels designed to maximize turbulent flow of heat-absorptive fluid therethrough an... | 05/29/1979 |
| 4150661 | Layout for collecting solar energy applicable to acclimatizing all types of buildings A layout for collecting solar energy is described which is made up of modules formed by two or more hollow plates of variable-cross section, placed parallel to each other, in the interior of which a fluid having chemical properties which assist the collec... | 04/24/1979 |
| 4136675 | Solar collector A solar collector comprises a series of absorber modules each formed as an extrusion that forms side-by-side flow channels. In one form of the invention, end plates close the flow channels at their ends, the ribs between the flow channels being cut away a... | 01/30/1979 |
| 4114599 | Solar collector A light weight, low cost, non-corroding, high efficiency solar energy collector is comprised of an absorber plate which is adapted to absorb solar energy in the form of heat and to transfer by conductance the heat to a heat exchange medium. The absorber p... | 09/19/1978 |
| 4114593 | Solar heating system The system produces heated air at a temperature up to 230° F. and comprises a box structure having one or more glass panels covering the top of the box. Separator walls divide the box into a series of air conveying ducts with the air being forced by mean... | 09/19/1978 |
| 4103675 | Solar collectors A solar collector using a basic element suitable for modular construction is described, comprising an absorber panel including a plurality of metal extrusions attached together in the direction of the width of the panel, and further metal extrusions each ... | 08/01/1978 |
| 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 |
| 4099513 | Solar heating collector An air solar heating collector assembly is provided having a framework covered by a back plate and a transparent front cover with a thin metal absorber plate mounted centrally therebetween. Baffle members are mounted on both surfaces of the absorber plate... | 07/11/1978 |
| 4076024 | Solar radiation collector The solar collector is formed with a first plate member and a second plate member in close spatial disposition and seamed along the edges of the plates to form a closed liquid containing planar chamber therebetween, said chamber having an inlet and an out... | 02/28/1978 |
| 4066062 | Solar heating system The present invention relates to an improved apparatus for utilizing the head from the sun's rays as a source of energy for heating a liquid which may be stored and/or circulated through a heating system for heating homes or other areas by providing a plu... | 01/03/1978 |
| 4056090 | Solar heat collector A solar heat collector designed to obtain maximum heat from sunlight rays when operational and minimum heat from sunlight rays when non-operational. The solar heat collector contains two sheets of solid material spaced and confronting each other between w... | 11/01/1977 |
