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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 |
| 7305799 | Bearing brace apparatus A brace apparatus having a core member adapted to absorb energy by undergoing plastic deformation and a buckling restraining assembly that maintains the structural integrity of the brace apparatus once the core member has undergone plastic deformation. A core member... | 12/11/2007 |
| 7246468 | Shade assembly for storage tank and method of use thereof A shade panel assembly that covers the top and sides of a storage tank. Such assemblies might also include a water dispensation system to dispense water mist substantially in the area of the shade assembly in the region between the assembly and the tank or substanti... | 07/24/2007 |
| 7174680 | Bearing brace apparatus The present invention is directed to a brace apparatus having a core member configured to absorb energy generated by seismic or other forces by undergoing plastic deformation. A buckling restraining assembly is included for maintaining the structural integrity of th... | 02/13/2007 |
| 7165698 | Construction for multi-layered vacuum super insulated cryogenic tank A construction for a multi-layered vacuum super insulated cryogenic tank and a method for making the same is disclosed. The cryogenic tank uses an inner tank that is wrapped with multiple layers of radiation shielding and is suspended within a frame by one or more s... | 01/23/2007 |
| 7162844 | Use of partial precast panels for construction of concrete walls and shells A precast panel for building reinforced concrete walls has a metal liner that forms a front surface of the panel. A concrete mass is disposed behind the liner. The panel has reinforcement structure within the concrete mass that can be used to provide continuity of r... | 01/16/2007 |
| 7111661 | Quick-action rolling shutter door A quick-action rolling shutter door and modules thereof used for closing openings in the walls of warehouses or factory buildings in order to restrict the loss of energy from heated or cooled rooms, and to protect the environment by keeping escaping noise, odors and... | 09/26/2006 |
| 7069957 | Thermal insulation device for at least one underwater pipe compressing sealed partitions The present invention concerns a device for heat-insulating at least one sub-marine pipe. The sub-marine pipe includes a heat insulation covering including a material subject to migration, the covering surrounding the pipe and being covered by a sealed protective en... | 07/04/2006 |
| 7056469 | Starter set for brick lining of ladles used in handling molten metal A lining for a ladle used to handle molten metal. The lining is comprised of a first course of like, refractory bricks arranged horizontally in the ladle, the first course having an upper surface. A second course of like refractory bricks is arranged to spiral withi... | 06/06/2006 |
| 7043887 | Pre-isolated storage tank for cold liquids A storage tank (100) with a pre-insulated outer tank (110) has been described, and a method for building such. For building a wall (112) of an outertank (110), a formwork (90) is erected with an inner partition (92) to which... | 05/16/2006 |
| 6994117 | Piping elbow liners Liners useful as piping elbow liners comprising a body liner, a tangential inlet liner, and a tangential outlet liner. The tangential inlet liner and the tangential outlet liner can be removably inserted into a cavity in the body liner. The body liner can comprise t... | 02/07/2006 |
| 6964141 | Building reinforcing method, material, and structure A high-ductility material or a high-ductility covering material is disposed on the outer circumferential surface of a member, such as a column, of a structure so as to confine expansion of apparent volume accompanying rupture of the member, to thereby control ruptur... | 11/15/2005 |
| 6711871 | Wall panel with off-module components A wall panel assembly comprising a curved, upwardly opening channel and a support member having a downwardly extending insert portion. The insert portion is inserted into the channel. A component is attached to the support member. In a preferred embodiment, a rail m... | 03/30/2004 |
| 6629395 | Wall unit forming method and apparatus A method of forming a wall unit having a veneer face is disclosed. Initially, a pair of side wall panels and a pair of end panels are mounted substantially upright. Stones or other suitable material are set sequentially in a horizontally disposed course u... | 10/07/2003 |
| 6431387 | Flat-bottomed tank and method for fitting it with a leak-proof coating The invention relates to an above-ground storage tank having a leakage protection lining for storing media posing a hazard to water, and to a process for equipping and particularly refitting an existing above-ground storage tank with a lining protecting i... | 08/13/2002 |
| 6253501 | Horizontal arch A horizontal arch is a structural element formed from a series of compression members which are arranged side-to-side in a curve array, and compressed together under the application of loading perpendicular to the plane of the curve of the horizontal arch... | 07/03/2001 |
| 6076318 | Interlocking puzzle An arcuate structure containing at least sixty six-sided building blocks, and said six-sided building blocks are independently able to provide means for connecting one of said six-sided building blocks to at least one of said six-sided building blocks. Th... | 06/20/2000 |
| 5873206 | Interlocking building block An arcuate building structure containing at least three five-sided building blocks, at least three six-sided building blocks, and said five-sided and six-sided building blocks are independently able to provide means for connecting one of said five-sided b... | 02/23/1999 |
| 5829209 | Method of manufacturing a silo or tank with a lining, and a wall sheet for manufacturing a silo or tank A method of manufacturing a silo or tank with a lining by using preformed wall sheets comprising, along the edges thereof, edge zones provided with bolt holes for connecting the wall sheets to each other with slight overlap, wherein wall sheets are used p... | 11/03/1998 |
| 5824263 | Ladle brick leveling set A ladle brick leveling set for high temperature molten metal ladles in which specially shaped refractory bricks are disposed in a slightly sloping geometrical configuration so as to compensate for a sloping bottom of a high temperature molten metal ladle.... | 10/20/1998 |
| 5816013 | Curved hollow panel and method for manufacture A curved panel for use in furniture. The curved panel includes a sheet which in a free state is flat. A plurality of pins are secured to opposite ends of the sheet. One or more members are provided for engaging the pins to maintain the sheet in a curved s... | 10/06/1998 |
| 5791107 | Building with a sealing element The invention pertains to a building, particularly in the context of a nuclear installation. The building is formed with an outer shell and an inner shell which form an intermediate space therebetween. A sealing element is disposed in the intermediate spa... | 08/11/1998 |
| 5791099 | Multi-walled, sectional swimming pool fabricated of preformed plastic or resin A swimming pool is formed of a plurality of multi-wall sections, each multi-wall section comprises a preformed plastic or resin and has an inner wall and an outer wall, with the inner wall and the outer separated to define an air space therebetween. The a... | 08/11/1998 |
| 5673528 | Safety wall for a building A wall, particularly a wall of a containment for a nuclear plant, a pool or a cavern, includes a bearing wall. A sealing element is disposed on at least one surface of the bearing wall and covers the bearing wall. A protective wall covers the sealing elem... | 10/07/1997 |
| 5657594 | Heat insulation covering structure of a low temperature cargo tank The present invention provides a heat insulation covering for a spherical storage tank such as an LNG tank or the like for storing an extremely low temperature liquid. The covering is constructed by using elongated panel-like heat insulating panels. A plu... | 08/19/1997 |
| 5655345 | Curved wall glass block assembly A method and apparatus for forming a curved wall glass block assembly (100) by stacking vertical tiers (102) (103) (104) etc. of horizontal rows of individual glass blocks (101) on top of a plurality of successive tier base support units (10) comprising a... | 08/12/1997 |
| 5595037 | Method of building up a silo or tank with a lining, and a wall sheet for building up a silo or tank and method of manufacturing such wall sheet A method of and wall sheet for building up a silo with lining and a method of manufacturing wall sheets for such a silo. The wall sheets are pre-formed wall sheets, comprising a base sheet and a sheet of lining material, bonded thereto in a slightly stagg... | 01/21/1997 |
| 5590497 | Circular or generally circular prestressed concrete tank and method of constructing same A tank of generally oval configuration created by the use of a plurality of curved, precast concrete panels of uniform size and rectangular configuration. Each panel is constructed utilizing a diaphragm liner either made of corrugated structural material ... | 01/07/1997 |
| 5560151 | Building blocks forming hexagonal and pentagonal building units for modular structures A building structure which contains a hexagonal building unit and a pentagonal building unit joined together by a plug. There are six triangularly-shaped building blocks in the hexagonal unit, and the base angles of these building blocks is from about 60.... | 10/01/1996 |
| 5513474 | Double-walled formwork element and process for manufacturing it Proposed is a double-walled formwork element comprising two large-area panels suitable for use as mould shuttering, particularly in the concrete construction industry. The two panels are joined to each other by force-locking, liquid-tight and gas-tight en... | 05/07/1996 |
| 5505030 | Composite reinforced structures This invention is an apparatus and process for the reinforcing of concrete, wood, or steel columns, beams, or structures. The apparatus includes pre-made reinforcing layers constructed of engineering materials having a high tensile strength and a high mod... | 04/09/1996 |
| 5383311 | Lined structure and liner A plastic liner for protecting concrete manhole interior surfaces from corrosion wherein the liner includes provisions for creating a strong mechanical lock between the liner and the interior surfaces. A side of the liner which includes the provisions has... | 01/24/1995 |
| 5329737 | Ceramic building block An arcuate building structure containing at least three five-sided building blocks, at least three six-sided building blocks, and means for connecting one of said five-sided building blocks to at least one of said six-sided building blocks. The top side o... | 07/19/1994 |
| 5325642 | Geodesic hazardous waste containment building A Geodesic Hazardous Waste Containment Building provides a means for the long term isolation of toxic waste from the environment. The invention comprises a primary containment sphere, a surrounding secondary containment sphere and a means for protecting t... | 07/05/1994 |
| 5325652 | Contoured marble and method of fabrication A building facade material includes a plurality of elongate stone strips held in an abutting relationship on a flexible mesh when in a plane with the flexible mesh enabling the strips to be adhered to a curved surface, with a V-shaped area between strips ... | 07/05/1994 |
| 5307388 | Containment structures A containment structure (1) for storage of nuclear fuel or liquids which have been in contact with nuclear fuel includes a concrete wall (3) and a concrete floor (2) with a corrosion resistant liner (5) fixed to and in contact with the walls and floor exc... | 04/26/1994 |
| 5303518 | Lined manhole assembly and liner A plastic liner for protecting concrete manhole interior surfaces from corrosion wherein the liner includes provisions for creating a strong mechanical lock between the liner and the interior surfaces. A side of the liner which includes the provisions has... | 04/19/1994 |
| 5277580 | Wall construction system for refractory furnaces An improved wall construction system for refractory furnaces is disclosed. The system includes an outer support structure into which are incorporated a plurality of connecting pin receiving sleeves or apertures. The system further includes a plurality of ... | 01/11/1994 |
| 5271193 | Concrete products and methods of fabrication An internal form with exterior surfaces corresponding to the interior surfaces of the access chamber adapted to be contacted by corrosive gasses; spraying such exterior surfaces of the form with a release agent and allowing the release agent to cure; spra... | 12/21/1993 |
| 5265750 | Lightweight cylinder construction A modular cylinder comprises a plurality of, in this case 24, modules each having a tongue to engage a groove of its neighbor and each either having a camming ramp to engage a camming ramp of its neighbor, or a filler rod inserted between adjacent modules... | 11/30/1993 |
| 5263603 | Insulation system for storage tanks An insulating system for storage tanks uses vertical straps and horizontal cables to form a web on the outer surface of a spherical storage tank. Fasteners and clamps positioned at intervals along the vertical straps anchor the cables in place. Panel sect... | 11/23/1993 |
