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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 |
| 7429026 | Concrete block technology A mold, process of using the mold to form a block, and the resultant block are disclosed. The block may of course be connected to other blocks to form stuctures such as walls. The blocks and structures may have curved features for simulating a log structure. The mol... | 09/30/2008 |
| 7306194 | Mold for producing a ceramic heat shield element A mold for producing a ceramic heat shield element having a mold shell is provided. The mold shell comprises a plurality of mold surfaces and a casting aperture for pouring in a ceramic material. The mold shell is embodied as a single-piece mold shell during casting... | 12/11/2007 |
| 7273573 | Sand sculpture mold A sand sculpture mold includes a hollow receptacle that tapers from a first end to a second end. The first end has a rim defining a first opening in the receptacle. The second end has an edge defining a second opening in the receptacle. The mold includes a removable... | 09/25/2007 |
| 7261425 | Structured surface articles containing geometric structures with compound faces and methods for making same A process for making molds for retroreflective sheeting and like articles includes making a substrate having a structured surface of geometric structures such as cube corner elements. The structured surface is in one embodiment partially replicated from a previous g... | 08/28/2007 |
| 7252281 | Apparatus for making a formwork for molding concrete walls A formwork making apparatus includes a bottom block, two side locating boards arranged in parallel on the bottom block, two forming boards respectively adhered to the side locating boards and set facing each other, two blocking plates set between the two side locati... | 08/07/2007 |
| 7241125 | Center touch method and apparatus for forming contact lenses A center touch method and apparatus for use in a contact lens station for use with a contact lens mold assembly comprising a first mold half and a second mold half. The center touch apparatus comprises a center touch engaging member having a center touch engaging su... | 07/10/2007 |
| 7222834 | Tool and a method for making a tool A tool 10 and a method for creating the tool 10 which is comprised of several selectively coupled sectional members 12, 16, and which includes at least one cooling channel 14. In one embodiment, each sectional member 12, 16, which ... | 05/29/2007 |
| 7195223 | System and a method for cooling a tool A tool (10) having improved heat transfer characteristics and a method for cooling a tool (10) which is comprised of several selectively coupled sectional members (12–17) Each selected sectional members (16) include an outer contour ( | 03/27/2007 |
| 7192000 | Plastics moulding A die for moulding a plastics part includes a cavity defining an overall shape of the part and having a surface-textured insert for providing an area upon the moulded plastics part having intricate surface detail. ... | 03/20/2007 |
| 7178779 | Resin molding die and production method for semiconductor devices using the same A resin molding die includes: a cavity; a resin inlet through which a liquid resin to be cured is injected into the cavity; and an air vent through which air is released to an exterior space of the resin molding die during injection of the resin, the air vent being ... | 02/20/2007 |
| 7165578 | Method for laying a rehabilitating pipe A rehabilitating pipe is laid inside an existing pipe to rehabilitate the existing pipe. Support members are intergrally connected to an inner wall surface of the existing pipe so that loop portions of the respective support members extend from the inner wall surfac... | 01/23/2007 |
| 7156641 | Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture This invention provides a mold for forming a contact lens comprising an overflow collector, which causes the overflow reactive mixture to be accumulated, and not to spread out as it would upon the typically flat surface of a prior art mold. This invention further pr... | 01/02/2007 |
| 7059806 | Hole former for an invert A hole former for a manhole with an invert, which aligns the hole with the invert such that pipes are properly aligned and will not leak or cause damming when connected to the manhole. The hole former has an alignment member with a central aperture as a part of the ... | 06/13/2006 |
| 7051988 | Brace for concrete forms A brace for securing concrete form members to a casting surface. First and second leg members are spaced to form an angle. A bridging member extends between opposing ends of the leg members and a strut extends between the joined ends of the leg members and the bridg... | 05/30/2006 |
| 7048250 | Method for producing purpose-made blocks, a device therefor and a purpose-made block A method for producing purpose-made blocks (10). According to said method, several purpose-made blocks (10) are produced in a mold (37) in such a way that the blocks (10) are arranged in at least one row (28) of purpose-made blocks... | 05/23/2006 |
| 7021601 | Dismountable casting mold side wall system Dismountable casting mold side wall system including a side wall attachable dismountably to the casting mold and a magnet adapted to clamp onto a casting bed so as attach said side wall thereto, in which system the release/clamp operations of the magnet are adapted ... | 04/04/2006 |
| 6997693 | Casting mold half and casting mold for producing contact lenses A casting mold half (5, 5a) for producing contact lenses comprises a mount (50) and an insert (51, 51a), which is arranged at one end of the mount (50) and can be connected to the mount (50) and which has a shaping su... | 02/14/2006 |
| 6986856 | Method of casting, the form used thereby and element produced therefrom The object of this invention is the method of manufacture of a symmetric element of a round ring and cone-shaped ring applicable in serial production. The application area of the invention is particularly the prefabrication of ceramic coating elements, which match t... | 01/17/2006 |
| 6896235 | Mold for molding foamed tube for tire, and method of manufacturing foamed tube for tire A mold for molding a foamed tube for a tire is formed from a first mold and a second mold. Each mold has an annular concave portion for tube molding, and joining faces which are continuous with the annular concave portion and are formed at an inner side and an outer... | 05/24/2005 |
| 6848229 | Tile laying tool and method of using same Apparatuses and methods for shaping a graded surface of a fill material around a drain are disclosed. The apparatus provides an outer ring for positioning within a shower enclosure, an inner ring for positioning within the outer ring and around the drain, a rail ass... | 02/01/2005 |
| 6821108 | Plastic castings molds The invention is concerned with the problem that with known plastic casting moulds, especially those of polypropylene, the lenses produced with these moulds have a slippery surface. The invention solves this problem through the use of polymers which are notable for ... | 11/23/2004 |
| 6786463 | Telescoping form A telescoping form for forming a void in poured concrete is disclosed. The form has an upper section defined by a plurality of sides, the upper section of plastic composition, and a lower section capable of telescoping into the upper section, the lower section of pl... | 09/07/2004 |
| 6776387 | Concrete test cylinder mold cap A method and apparatus for molding a reproducible uniform concrete test cylinder. Concrete is poured into a concrete test cylinder mold. A cap having at least one excretion hole is placed on the top portion of the concrete test cylinder mold. The cap is pressed agai... | 08/17/2004 |
| 6758533 | Wheel for a motor vehicle and a method of making the wheel In a wheel for a motor vehicle, the existing hollow spaces are filled with residual cores. These cores are made of a metallic foam or are of shell-shaped bodies or shell-shaped bodies filled with metallic foam. The cores are arranged in closed and open hollow spaces... | 07/06/2004 |
| 6732994 | Intraocular lens manufacturing apparatus A method of cast molding an intraocular implant from two or more dissimilar materials using disposable molds. The subject cast molding method is particularly useful in the production of intraocular lenses manufactured from dissimilar materials. It is desirable to pr... | 05/11/2004 |
| 6721097 | Optical element, its manufacturing method and optical element manufacturing metal die Systems and methods of the present invention are directed to an optical element that includes a diffraction grating, an inclined surface, good optical characteristics, and an optical element manufacturing metal die. The optical element manufacturing metal die is cap... | 04/13/2004 |
| 6591893 | Sinker casting mold An expandable mold for use with metals that expand during solidification with the expandable mold having sidewalls that are forcibly laterally separated to thereby expand the mold cavity sufficiently so as to free at least one portion of the cast article ... | 07/15/2003 |
| 6578815 | Concrete wall and rib form A wall and rib form for forming a concrete building wall having a concrete rib protruding perpendicularly from a face of the wall along one wall edge includes a substantially horizontal platform having a platform upper surface defining a perimeter form bo... | 06/17/2003 |
| 6552863 | Optical element, its manufacturing method and optical element manufacture metal die An optical element having a complex structure of diffraction grating, an inclined surface, a difference in level and the like and of good optical characteristics, its manufacturing method, and an optical element manufacturing metal die capable of injectio... | 04/22/2003 |
| 6508558 | Retroflective prismatic retro-reflectors without visually disturbing seams A method and apparatus for making retro-reflective articles are described wherein continuous or large sheets of retro-reflective material can be made without visually disturbing seam lines. In one embodiment molds having retro-reflective elements have ser... | 01/21/2003 |
| 6502416 | Automatic ice maker of the open-cell type An automatic ice maker of the open-cell type including a box-type housing, a plurality of spaced ice making cell casings arranged on a horizontal plane in an upper portion of the housing and opened downward, a cooling pipe mounted on the cell casings to b... | 01/07/2003 |
| 6502801 | Apparatus and method for molding a core for use in casting hollow parts A mold for molding a core for use in casting hollow parts includes, a lower mold portion and an upper mold portion defining therein a cavity corresponding to the outer surface of the core. The lower mold portion includes a cutout disposed along a parting ... | 01/07/2003 |
| 6491281 | Mold assembly for producing ophthalmic lens article A mold assembly for forming an ophthalmic lens article includes a first mold and a second mold. The first and second molds are assembled together to define a mold cavity therebetween having a profile corresponding to that of the ophthalmic lens article to... | 12/10/2002 |
| 6434894 | Formwork for prefabricated concrete parts A formwork system is provided for prefabricated concrete parts, wherein a magnetic body can be set with its underside on a base plate and over which formwork parts can be fixed in their respective position. The formwork part has a lift-off stirrup engagin... | 08/20/2002 |
| 6405993 | Lens mould A cast mould for use in the manufacture of a contact lens by the polymerisation of a flowable precursor comprises a female mould part and a male mould part. The female mould part has a concave first surface region adapted to receive the flowable precursor... | 06/18/2002 |
| 6386855 | Cube corner sheeting mold and of making the same Laminae suitable for use in molds for forming retroreflective cube corner elements and methods for making such laminae are disclosed. A representative lamina includes a first row of cube corner elements disposed in a first orientation and a second row of ... | 05/14/2002 |
| 6345801 | Mould for molten magnesium and method of producing magnesium ingots This invention relates to an improved mould for casting a standard Magnesium ingot. The mould is constructed so as to minimize the surface area of the molten Magnesium which is exposed to the surrounding air. This significantly reduces the reliance on cos... | 02/12/2002 |
| 6318987 | Cube corner sheeting mold and method of making the same Laminae suitable for use in molds for forming retroreflective cube corner elements and methods for making such laminae are disclosed. A representative lamina includes a first row of cube corner elements disposed in a first orientation and a second row of ... | 11/20/2001 |
| 6299818 | Process and apparatus for molding jewelry A new technique for efficiently manufacturing jewelry includes the use of a universal frame in combination with a low cost flexible mold. Various inserts can also be used to customize jewelry pieces made using the mold and frame. The material cured in the... | 10/09/2001 |
| 6283745 | Injection mold for producing spool An injection mold for molding a spool with flanges at both ends of a shaft such that the inner wall surfaces of the flanges are not flawed, and the dimension between the flange inner wall surfaces is uniform and thus the flange inner wall surfaces are fre... | 09/04/2001 |
