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Reward Candy Dispenser for Personal Computers
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 |
| 7421825 | Doubly prestressed roof-ceiling construction with grid flat-soffit for extremely large spans A doubly prestressed roof-ceiling construction with grid flat soffit for extremely large-span is a prefabricated element intended for assembling roofs of extremely large-span buildings with a flat soffit. The construction includes a grid soffit construction and an u... | 09/09/2008 |
| 7137399 | Collapsible structure with top supporting elements The invention is a collapsible structure comprising a plurality of panel elements, each having a coilable frame element and flexible material attached to the frame element. The panel elements are joined to define an enclosure having a roof portion and a bottom perim... | 11/21/2006 |
| 6938381 | Catastrophic event survival structure and method of manufacture A catastrophic event survival structure and method of manufacture such that the catastrophic event survival structure includes a monolithic outer shell formed from a single pour of concrete and enclosing a confined inner space therein. The monolithic outer shell of ... | 09/06/2005 |
| 6557308 | Building structure A building accessible to persons, which comprises at least one constructional element, which element is tubular and which is at least substantially made of wound-together layers of a strip of paper/cardboard, wherein each layer is at least substantially m... | 05/06/2003 |
| 5881530 | Method and apparatus for constructing prestressed structures utilizing a membrane and floating dome assembly The present invention is directed to improved tank or containment vessels and processes and apparatus for their construction. The tanks or containment vessels usually consist of circular walls resting on a base and a dome supported by the walls. The dome ... | 03/16/1999 |
| 5675941 | Method and apparatus for constructing prestressed structures utilizing a membrane and floating dome assembly The present invention is directed to improved tank or containment vessels and processes and apparatus for their construction. The tanks or containment vessels usually consist of circular walls resting on a base and a dome supported by the walls. The dome ... | 10/14/1997 |
| 5408793 | Multi-purpose dome structure and the method of construction thereof An improved dome structure on a base is disclosed comprising, in the preferred embodiment, of a membrane sandwiched between layers of rigidifying material such as shotcrete or reinforced composite which also serve to embed radial wires and circumferential... | 04/25/1995 |
| 5143276 | Domed structures and a method of making them by superplastic forming and diffusion bonding The present invention provides a method of making a domed structure using superplastic forming and diffusion bonding techniques. The dome is of a deep and/or irregular shape that cannot be achieved by creep forming. The method includes the step of forming... | 09/01/1992 |
| 4696133 | Building with covered interior open space A building includes an annular structure having inner and outer walls and a dome roof enclosing building units. An open space within inner wall is covered by air-supported fabric dome roof. Through selection of surface areas, thicknesses, and coefficients... | 09/29/1987 |
| 4514347 | Spherical projection-type screen for use in a vehicle simulator A geodesic dome structure is described, i.e., a structure having a mathematically-derived surface. This new dome structure is formed of a single, one-piece layer of synthetic material and provides a one-piece, seamless screen to permit the viewing of a sc... | 04/30/1985 |
| 4468902 | Multi-walled structures for controlled environmental use Multi-wall devices embodying two or more spaced members arranged to provide an enclosed space therebetween for controlling the transmission of energy through the members for the purpose of capturing, storing and releasing energy.... | 09/04/1984 |
| 4299066 | Dome structure having at least one environmentally isolatable compartment A dome structure having a plurality of isolatable and preferably environmentally isolatable and inhabitable compartments. These inhabitable compartments are preferably capable of generating an environmental condition capable of supporting animal life and ... | 11/10/1981 |
| 4155967 | Building structure and method of making same A building structure and method of making the same are disclosed wherein an inflatable form is inflated and an insulation layer of urethane form is applied to the undersurface of the foam. Hanger members are secured to the foam layer by adhesively affixin... | 05/22/1979 |
| 3968190 | Method of molding a spherical structure A substantially spherical shaped structure constructed of reinforced concrete poured in a plurality of courses, each course consisting of a horizontal substantially annular band extending completely around the structure. A series of forms are shaped and p... | 07/06/1976 |
| 3939615 | Foldable roof construction element A foldable construction element for forming roof constructions or buildings is described. The foldable element may consist of a polygonal sheet of paper, cardboard, plastic, or other suitable material which is provided with fold-lines in selected areas th... | 02/24/1976 |
