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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 |
| 4144632 | Method of making tubular article A one-step method of both making and tortuously shaping three component tubular articles is disclosed, the tubular articles being of the hollow skin-core type of the desired complex configuration, strong and rigid, free from porosity, light in weight, res... | 03/20/1979 |
| 4139666 | Antitack agent Powdered milk is used as an antitack agent for products made to handle food items, particularly milk. In one embodiment, flexible articles used for handling and storage of food items such as milk are coated with sufficient powdered milk to prevent stickin... | 02/13/1979 |
| 4136149 | Molded rubber article and method A molded rubber article is described having an exterior or surface layer which is formed of a blend including a heat setting rubbery polymer, and a halogenated polyethylene acting as an internal mold release agent during processing and also enhancing the ... | 01/23/1979 |
| 4121962 | Method of making a hose An irradiated polyethylene tube is supported on a mandrel with adhesive material applied against its outside surface whereupon a first tubular layer is braided against the adhesive means followed by a tubular layer of neoprene rubber followed by braiding ... | 10/24/1978 |
| 4111237 | Braid reinforced flexible brake hose In a preferred embodiment a hydraulic brake hose comprises a polychloroprene inner tube, a reinforcing braid of twisted glass fiber yarn around the tube, a styrene-butadiene copolymer rubber cushion layer over the glass braid, a second reinforcing braid o... | 09/05/1978 |
| 4110396 | Curved tubular articles and method A method for the production of curved tubular elastomeric articles such as hose is described which uses a heat recoverable mandrel which when heated above its transition temperature range undergoes a transformation and reverts to a preselected curvilinear... | 08/29/1978 |
| 4102724 | Method of making a hose having an improved surface appearance A vulcanized reinforced elastomeric hose and a method for its production wherein a layer of uncured rubber supported on a mandrel is surrounded by reinforcement filaments and thereafter vulcanized. In the same method of the invention recesses are provided... | 07/25/1978 |
| 4102360 | Hose construction An irradiated polyethylene tube is supported on a mandrel with adhesive material applied against its outside surface whereupon a first tubular layer is braided against the adhesive means followed by a tubular layer of neoprene rubber followed by braiding ... | 07/25/1978 |
| 4091843 | Flexible tubes for hydraulic applications A technique for producing flexible tubing for use in hydraulic systems employing non-combustible, force-transmitting liquids is described. An inner layer of the tube is formed from a load-carrying metal insert embedded in polychloroprene or natural rubber... | 05/30/1978 |
| 4089360 | Pneumatic tire containing an irradiated laminated component This disclosure relates to a laminate of several layers of rubber compounds. The laminate may be in sheet or strip form with various cross-sectional shapes. The layers in the laminate comprise rubber compounds, some of which contain agents which either as... | 05/16/1978 |
| 4080999 | Fiber reinforced sandwich tube The invention relates to a sandwich tube comprising an inner and an outer fiber reinforced layer of thermosetting resin and an intermediate layer therebetween consisting of inorganic filler material coated with thermosetting resin and obtained by spraying... | 03/28/1978 |
| 4048362 | Reinforced elastomeric articles The invention relates to a method of bonding certain aromatic polyamide to nitrile rubber compositions by applying to an aromatic polyamide a coating of a vinyl chloride polymer, preferably as a latex or plastisol, assembling the coated aromatic polyamide... | 09/13/1977 |
| 4044990 | Flexible tubular members and valves incorporating such members A flexible tubular member for use in a pinch valve and through which fluid medium will flow in operation of the valve said member having in its bore diametrically spaced shoulders over which the immediately adjacent portions of the tube wrap as the tube i... | 08/30/1977 |
| 4025684 | Tubular fabric coated with plastics or synthetic rubbers The disclosure embraces an inflatable flat tubular fabric which is coated on its outside surfaces with synthetic rubber or plastic and is constructed by weaving the fabric in tubular form with basic threads having a given tensile strength with the two lay... | 05/24/1977 |
| 3994673 | Hose construction and utilization A hose has an extruded tube formed of a blend of polyethylene and butyl rubber, a braided external reinforcement layer and a film applied by coating to unify and give dimensional stability to the elements of the cover. The hose is used in LP gas installat... | 11/30/1976 |
| 3992505 | Method for producing curved elastomeric tubular articles The method includes filling the hollow interior of a flexible uncured tubular preform with a flowable substantially incompressible material, training the thus filled tubular element about discrete support means which contact a portion of the exterior surf... | 11/16/1976 |
| 3988189 | Method of constructing a hose A method of constructing a finished hose that includes a synthetic rubber core tube, comprising extruding the tube over a mandrel, completely curing the tube, applying a bonding agent to the tube, and applying reinforcement and covering over the tube so t... | 10/26/1976 |
| 3988188 | Dimensionally stable, flexible hydraulic hose having improved chemical and temperature resistance A dimensionally stable, flexible, hydraulic hose having an elastomeric core tube cross-linked by irradiation with ionizing electrons, a fibrous reinforcing layer surrounding the core tube which prevents the core tube from expanding with increase in pressu... | 10/26/1976 |
| 3982982 | Hose construction A method of forming hose construction utilizing an aromatic polyester thermoplastic core and reinforcing means mechanically bonded about the core with the core portion in which the reinforcing means is embedded being substantially free of stress. A sheath... | 09/28/1976 |
| 3948293 | Hose construction and utilization A hose has an extruded tube formed of a blend of polyethylene and butyl rubber, a braided external reinforcement layer and a film applied by coating to unify and give dimensional stability to the elements of the cover. The hose is used in LP gas installat... | 04/06/1976 |
