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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 |
| 8096295 | Solar panel having polycarbonate sheet covering A solar panel includes an inlet manifold, an outlet manifold spaced apart from the inlet manifold, and a plurality of pipes having a first end in open fluid communication with the inlet manifold and a second end in open fluid communication with the outlet manifold. ... | 01/17/2012 |
| 7931019 | Self-powered pump for heated liquid, fluid heating and storage tank and fluid heating system employing same A self-powered pump for heated liquid is provided. The pump includes an airtight container for containing the heated liquid. A heated liquid inlet pipe extends upwardly into the container such that its end is within the container. A heated liquid outlet is lower tha... | 04/26/2011 |
| 7856974 | Solar chimney with internal solar collector A solar chimney includes a solar collector which heats air in the chimney, producing updrafts which can be harnessed to perform useful work. The solar collector may be located inside or outside the chimney. The device may include a reservoir for storing a heat trans... | 12/28/2010 |
| 7669592 | Solar power plant A collector for solar energy is disclosed having a closed hollow partially spherical container with a window for permitting solar energy to enter the container. The container has a reflective inner surface for retaining the energy. The collecting lens focuses the so... | 03/02/2010 |
| 7431030 | Solar panel for water-heater Solar panel for water-heater of the type comprising a heat exchanger made of moulded synthetic material, having a plurality of passages 7 in which a heat-exchanging fluid can circulate and a translucent cover sheet 17 attached to the exchanger with a c... | 10/07/2008 |
| 7077124 | Wall integrated thermal solar collector with heat storage capacity A wall integrated thermal solar collector with heat storage capacity includes a transparent layer and a solar radiation absorption layer, that is separated by an air gap from the transparent layer. A heat storage layer of phase changing material is positioned in clo... | 07/18/2006 |
| 6931851 | Solar central receiver with inboard headers A solar power plant having a plurality of receiver panels mounted in a circular fashion about a solar receiver. Each receiver panel includes a plurality of tubes that terminate at each end at a header. To eliminate the presence of gaps between the tubes of adjacent ... | 08/23/2005 |
| 6787116 | Overmolding insert for heat exchanger, process for manufacturing a heat exchanger, and heat exchanger produced thereby An overmolding insert includes a base having at least one opening in a first surface, the opening communicating with a second surface opposite the first surface, at least one hollow projection extending from the first surface, the hollow projection having a first op... | 09/07/2004 |
| 6769427 | Solar water heater A solar water heater comprising a water tank, a solar heating compartment for heating water, and an air pump. The water tank and the solar heating compartment are both substantially cylindrical, and the bottom surface of the heating compartment overlaps the top surf... | 08/03/2004 |
| 6653551 | Stationary photovoltaic array module design for solar electric power generation systems A stationary solar photovoltaic array module design, which constitutes four steps of optical concentrations of photovoltaic electric power generation systems. A compound parabolic concentrator (CPC) is mounted under a first and second optical concentratin... | 11/25/2003 |
| 6630622 | Combined solar electric power and liquid heat transfer collector panel An apparatus for converting solar energy to thermal and electrical energy including a photovoltaic grid for converting the concentrated solar energy into electrical energy mounted on a copper plate that provides even temperature dispersion across the plat... | 10/07/2003 |
| 6472593 | Hybrid roof covering element A hybrid roof covering element, which suitable for simultaneously heating a medium and generating electricity, and which comprises a single or multiple transparent layer, a flexible thin film solar cell sheet with a heat capacity of less than 3.5 kJ/m | 10/29/2002 |
| 6446625 | Solar energy collection system and fluid conduit therefor A solar energy collection system that can be retrofitted into pavement covered lots, such as macadam covered parking lots has a pump and heat exchanger, and a conduit buried below the pavement surface that contains a heat transfer fluid such as water. The... | 09/10/2002 |
| 6384320 | Solar compound concentrator of electric power generation system for residential homes The invention relates to a solar compound concentrator of an electric power generation system. A compound parabolic concentrator (CPC) is mounted under an acrylic concentrating fresnel lens that concentrates the intensity of sunlight to five to ten times ... | 05/07/2002 |
| 6371198 | Heat storage device A heat storage device comprises a heat storage tank 2 charged with a heat storage material 1 for storing the heat supplied from the outside, and a heat exchanger 3 for executing an injection and an extraction of heat between the inside of the storage tank... | 04/16/2002 |
| 6364002 | Heat storage apparatus A heat storage apparatus for a temperature range of about 10 to 95 degrees Celsius, especially for solar installations, heat pumps, boilers or the like and for extraction of heat for the operation of a room heating installation and/or an installation for ... | 04/02/2002 |
| 6080927 | Solar concentrator for heat and electricity A solar concentrator for producing usable power as heat and/or electricity uses a self-steering heliostat 1502 to concentrate solar radiation 1509 onto an absorbing surface such as, or including, a solar cell array 1511 capable of absorbing power from the... | 06/27/2000 |
| 5947114 | Central solar receiver with a multi component working medium A central solar receiver comprising a tubular housing with a central axis, a radiation admitting aperture and an absorber chamber having an outer wall, two oppositely located ends, an inner-wall-forming substantially tubular transparent window co-axial wi... | 09/07/1999 |
| 5931157 | Thermal insulation/thermal collector assembly A combined thermal-insulation/thermal-collector assembly for the outside walls or roofs of buildings has a heat-insulating layer which is transparent to solar radiation and is designed with a transparent structure. The heat-insulating material including a... | 08/03/1999 |
| 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 |
| 5261390 | System for heating fluid in process equipment with solar energy A system for heating a fluid (5) conveyed or contained in process equipment (7) comprises a layer of transparent thermal insulation (9) which partly covers the process equipment so that a section (13) is exposed to solar radiation and thus is heated by th... | 11/16/1993 |
| 5224466 | Process for converting solar energy into heat and device for implementing the process A process and apparatus for converting solar energy into heat wherein a solar collector includes a plurality of mutually-coupled solar energy collector elements (1) coupled to a heat transfer fluid circuit, each collector element including a collector cha... | 07/06/1993 |
| 5103802 | Thermosyphon heat-storage and backup heat apparatus Prior inventions in 2-tank solar heat-storage systems, generally speaking, provide for solar-produced heat stored in a first tank. Therefore STORED solar heat is limited to that one tank. Backup heat is produced and stored in a second tank. In the present... | 04/14/1992 |
| 5088471 | Solar heating structure A solar heating system is disclosed which comprises the combination of a refrigerant charged collector positioned exteriorly of a house or other building in exposed relation to the sun's rays, and a heat storage unit located interiorly of the building and... | 02/18/1992 |
| 5048507 | Endothermic building With reference to FIG. 3, the sloping roof (250) of a building (10) incorporates inner and outer juxtaposed metal panels, (15, 16) spaced from each other to define passageways (20) which serve as heat exchangers. A closed-loop water circulation system (18... | 09/17/1991 |
| 4993481 | Thermal storage unit A thermal storage unit has a thermal storage material which performs heat exchange through a fluid filled in a thermal storage body arranged within a vessel having an opening communicated to outside. The thermal storage body is a porous ceramic molding wh... | 02/19/1991 |
| 4930492 | Solar water heating system A solar water heating system comprising a solar energy collector which comprises a solar energy absorber communicating with a fluid distribution manifold, a drainback tank communicating with the distribution manifold for collecting drainage fluid from the... | 06/05/1990 |
| 4917079 | Solar water heating system A solar powered water heating system (10) for heating water in a storage tank (T) including a solar collector (C) for converting a refrigerant from a liquid to a gaseous state, a pump (30) communicating with the solar collector via a first refrigerant sup... | 04/17/1990 |
| 4913129 | Solar receiver having wind loss protection A central solar receiving tower includes an air permeable heating surface which is exposed directly to the ambient. The heating surface receives solar radiation from a heliostat field and a warm airstream is circulated to the forward exposed face of the h... | 04/03/1990 |
| 4911228 | Apparatus for heating and cooling liquids A heat transfer system for liquids comprising a liquid container internally divided by an impervious flexible membrane into first and second liquid compartments, the first compartment including first liquid inlet port adapted for connection to a supply of... | 03/27/1990 |
| 4893611 | Solar energy collection and storage apparatus In an apparatus for collecting and storing solar energy, in order to improve the efficiency while maintaining a simple structure, a storage container is divided horizontally into a smaller upper water volume and a larger lower water volume by means of an ... | 01/16/1990 |
| 4872315 | Heat exchanger and systems and methods for using the same A heat exchanger comprises a housing containing upper and lower layers of fluid, the upper layer being less dense than the lower layer. The large and sharp density gradient at the interface between the upper and lower layers acts to prevent mixing of the ... | 10/10/1989 |
| 4790477 | Solar heating The invention relates to a space heating system comprising an air cooled solar collector, a heat store, air ducting, a forced draught mechanism valves, auxiliary heating means and a control system. According to the invention the auxiliary heating means in... | 12/13/1988 |
| 4789517 | Rotating bubble membrane radiator A heat radiator useful for expelling waste heat from a power generating system aboard a space vehicle is disclosed. Liquid to be cooled is passed to the interior of a rotating bubble membrane radiator, where it is sprayed into the interior of the bubble. ... | 12/06/1988 |
| 4779610 | Plane solar heat collector A solar accumulator with a plane solar heat collector of the kind which emits radiated heat to an accumulator tank containing a heating fluid in a pressure free condition and at least one heat exchanger coil is arranged in said accumulator tank. The colle... | 10/25/1988 |
| 4777934 | High temperature solar receiver A solar central receiver includes a radiation receiver comprising a housing having an open aperture in one wall. An atmospheric airstream having a preselected concentration of particles is directed through the receiver and heated by focused solar radiatio... | 10/18/1988 |
| 4749447 | Evacuated evaporation-pressurized condensation solar still This invention discloses a solar still comprising a plurality of twin conduits routed through a plurality of solar collectors wherein the liquid is evaporated in the evaporation conduit constituting the first of the twin conduits and the vapor is condense... | 06/07/1988 |
| 4738305 | Air conditioner and heat dispenser A heating and cooling air conditioning system includes serially arranged conductive and evaporative pad heat exchangers through which circulating air to be heated or cooled is moved by a blower. The conductive heat exchanger contains a liquid heat exchang... | 04/19/1988 |
| 4727856 | Solar water heating and storage system An improved solar water heating and storage system is disclosed characterized by use of physically separated yet thermally interfaced solar collector and domestic water storage reservoirs. The reservoirs and conduit systems are designed to provide a therm... | 03/01/1988 |
| 4691692 | Solar energy system with delayed drain-back A solar energy system in which a heat transferring liquid captures heat in solar collectors and stores it in a storage tank is disclosed. A pump moves heat transferring liquid from the storage tank to the collectors and into a drain-back module only when ... | 09/08/1987 |
