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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 |
| 7326047 | Apparatus for producing a tubular body In an apparatus for producing a tubular body with a membrane forming a separating wall extending across the interior of the tubular body, an injection mold is provided including a cylindrical hollow space corresponding to the outer wall of the tubular body and a pin... | 02/05/2008 |
| 7244367 | Metal alloy elements in micromachined devices A micromechanical device is provided, which includes at least one flexible member formed from an alloy, where the alloy is made up of one or more noble metals and one or more alloying elements, wherein each of the alloying elements has an equilibrium solid solubilit... | 07/17/2007 |
| 7131835 | Injection molding machine An injection molding machine having two injection units retained in parallel on one heating cylinder retention member, so that nozzles of the two injection units can touch fixed-side molds by advance of the heating cylinder retention member toward the molds. Two noz... | 11/07/2006 |
| 7090800 | Mould and method for injection-compression moulding A mold, a molding machine and a method of molding a plastics material in a mold cavity is described which relies primarily on movement of a part of the mold to provide the pressure necessary to force the plastics material melt to fill all the parts of the mold cavit... | 08/15/2006 |
| 7077637 | Force detecting controlling device of a screw for an injection molding machine The present invention is a force detecting controlling device for a screw of an injection molding machine, which utilities a load cell as a force sensor for injection, holding pressure and back pressure. The load cell arranged on a rear fixed plate directly detects ... | 07/18/2006 |
| 6811392 | Traction type electric injection molding machine The object of the present invention is to provide a traction type electric injection molding machine requiring only one electric motor for mold clamping and only one rotational transformer, with a mold clamping apparatus installed on the top of a bed and between the... | 11/02/2004 |
| 6689303 | Injection molding method using a stacked mold An injection molding apparatus includes a vessel, mold, pusher, and thrust providing section. The vessel stores a molding material and has a nozzle hole which is formed in the bottom portion to inject the molding material and a first seal surface formed a... | 02/10/2004 |
| 6613262 | Molding system with movable mold modules A mold apparatus provides a movable mold module which includes movable tie rods which are extendable and retractable with respect to the movable mold module of the mold apparatus, such that the tie rods may initially be removed from a gap between the plat... | 09/02/2003 |
| 6382945 | Resin plunging apparatus for molding resin to seal an electronic device A resin plunging apparatus for molding resin to seal an electronic device, in which a ball screw is rotated to move a movable base plate and two load elements at the movable base plate, enabling a plunger holder which is supported on the load elements to ... | 05/07/2002 |
| 6220848 | Injection moulding die locking and opening device A locking and opening device for an injection moulding die, particularly for processing highly liquid melted plastic material, provides a technically simple, low cost mechanism to lock the die and limit elements located above workbench level or mould leve... | 04/24/2001 |
| 6024560 | Injection molding machine Principal parts of an injection molding machine (1) are formed by joining a stationary platen (3), moving platen (4), mold clamping mechanism section (7), and rear platen (5) in the order named, the stationary platen (3) and the rear platen (5) are connec... | 02/15/2000 |
| 5565224 | Electric injection molding machine An injection molding machine where the movable mold platen 3 and the fixed mold platen 2a are arranged separately of the drive unit 20. The drive unit 20 is located behind the injection unit 1 and connected by pins 9 to the mold section. This arrangement ... | 10/15/1996 |
| 4744746 | Injection molding apparatus Injection molding apparatus (10) for processing and transferring molding material from a feed mechanism (30) to a nozzle (75) for discharging into a mold including a bolster (12), an injection head (11) extending through the bolster, an injection barrel (... | 05/17/1988 |
| 4708631 | Injection unit for injection molding machine An injection unit is disclosed with bridges for carrying a plastification cylinder and plastification screw, which bridges are capable of moving along stationary guide rods. The bridges also carry a central injection cylinder and drive cylinders, the driv... | 11/24/1987 |
| 4664612 | Apparatus for producing seat cover cushions An apparatus for producing seat or backrest cushions from plastic foam in which the hardness of the cushion varies in different regions of the cushion. The components for making the different plastic foam mixture are first mixed in a mixing head, and then... | 05/12/1987 |
| 4636167 | Injection moulding clamping apparatus for an injection moulding machine Injection pressure acting on a molten material inside a nozzle in an injection process also acts on a mould clamping piston disposed in an injection cylinder to face an injection piston. The injection pressure acting on the mould clamping piston is transm... | 01/13/1987 |
| 4626189 | Method and machine for forming articles from a plastic material The molding machine of the present invention comprises a screw extruder for extruding plastic material. A plurality of molds are moved one at a time to the outlet end of the extruder for receiving the plastic material therefrom. One end of the mold is ope... | 12/02/1986 |
| 4025264 | Die closing unit with retractable tie rods A die closing unit for an injection molding machine, where the closing force is provided by either push-type or pull-type hydraulic cylinders, the die closing unit having in each case a movable die carrier member and a stationary die carrier member and tw... | 05/24/1977 |
| 3986806 | Injection moulding apparatus An injection moulding apparatus having an injection mould and a mandrel insertable within the mould is provided with frustoconical co-operating surfaces on the mandrel and mould respectively which are adapted to engage with one another when the mandrel is... | 10/19/1976 |
| 3972668 | Pressless injection molding apparatus The apparatus of this invention relates to an injection molding device having separable mold plates into which fluid plastic is injected to form an article and which utilizes the injection pressure of the fluid plastic to generate forces sufficient to ove... | 08/03/1976 |
