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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 |
| 7165433 | Method of manufacturing a chamber plate for a liquid ejection head There is disclosed a method of manufacturing a chamber formation plate of a liquid ejection head. The chamber formation plate includes a first region formed with at least recess portions to be pressure generating chambers communicated with nozzles from which liquid ... | 01/23/2007 |
| 7100415 | Method and apparatus for manufacturing a liquid ejection head A metallic plate member having at least one through hole to be a part a common liquid reservoir of a liquid ejection head is provided. In a first die, a plurality of first projections are arrayed in a first direction with a fixed pitch. Each of the first projections... | 09/05/2006 |
| 7073534 | Silencer for perforated plate flow conditioner A perforated plate flow conditioner includes a single acoustic feedback interference device having an upstream end attached to a downstream side of the perforated plate. The upstream end covers substantially all of the downstream side of the perforated plate between... | 07/11/2006 |
| 6952874 | Two-stage phasing plug system in a compression driver This invention provides a two-stage phasing plug located within a compression driver. The two-stage phasing plug housed within the compression driver may be coupled to a horn. The two-stage phasing plug includes first and second phasing plugs. The advantages of havi... | 10/11/2005 |
| 6915756 | Bells A bell is described having the first at least three or more frequencies substantially in harmonic sequence. A method for designing such a bell is also disclosed. An optimization procedure is described wherein an initial bell shape is modified until the first at leas... | 07/12/2005 |
| 6606772 | Method for manufacturing piezoelectric oscillator A method is provided for fabricating a piezoelectric vibrator without degrading vibration characteristics. The piezoelectric vibrator has a vibration plate formed with a piezoelectric vibration portion and a frame portion integrally connected with a base ... | 08/19/2003 |
| 6098259 | Apparatus for continuously producing jingling bells An apparatus for continuously producing jingling bells includes an upper mold plate and a lower mold plate. The upper mold plate includes a number of punch pins for punching a material web into jingling bells. A cutter is provided on the upper mold plate ... | 08/08/2000 |
| 5871643 | Rotary drum filtration apparatus with a detachable filter In order to greatly shorten the filter exchange time required for detachably winding a filter (20) on the opening portions (2) formed in the outer circumferential surface of a filtration drum (1), projecting or recessed annular mounting portions (6) are r... | 02/16/1999 |
| 5507082 | Method of manufacturing an object lens holder An object lens holder for holding an object lens for converging a laser light radiated from a laser light source on a signal recording surface of an optical recording medium includes a bobbin part formed by abutting and connecting first and second bobbin ... | 04/16/1996 |
| 5485664 | Method for producing globe-shaped bells with single piece shells A method for manufacturing a bell continuously and automatically with a number of mold pieces which are movable downward toward a lower mold having a number of mold cavities for engaging with one half of the bell. A plate member is fed step by step throug... | 01/23/1996 |
| 5297324 | Fully rounded jingle bell making method A fully rounded jingle bell making method including steps of (a) preparing a bell blank having four blades spaced by notches around a dome-like body portion; (b) secondarily punching the bell blank to turn the blades from respective horizontal positions t... | 03/29/1994 |
| 5203560 | Production of a sound-producing PU-ball The production of a sound-producing polyurethane foamed ball is disclosed in which the sound producing hardware having a sound generating circuit connected to a battery set by a spring switch, is placed in a mold for producing a polyurethane foam ball in ... | 04/20/1993 |
| 4361952 | Method of adjusting air gap of an electric horn The invention pertains to an electric diaphragm horn and the method of air gap adjustment wherein the horn utilizes an electric coil mounted with a housing which includes a pole piece; a diaphragm being mounted upon the housing including a plunger to be s... | 12/07/1982 |
| 4330915 | Technique for uniform stylus configuration A technique for manufacturing a uniform configuration for at least two video disc styli, each stylus having a shank and a tip at one end of the shank, comprising the step of attaching an edge of a first plate of shank material to one edge of a strip of ti... | 05/25/1982 |
| 4328607 | Manufacturing process for foil magnetic recording disks A magnetic recording device employing a thin foil member is fabricated by radially compressing a ring member, securing the periphery of the foil member to the compressed ring, releasing the compression on the ring so that it expands to produce tension in ... | 05/11/1982 |
| 4227482 | Pressurized fluid-actuated sound-producing device, and method of assembling it A sound-producing device, for use with a pressurized fluid container, includes a body having an orifice surrounded by an annular seat, a cap facing the seat, and a diaphragm held taut over the seat, the margin of the diaphragm being tightly gripped betwee... | 10/14/1980 |
| 4180008 | Solderless bell and method of forming a solderless bell A method of forming a solderless bell, having a single sound opening, out of a blank within a strip, is disclosed, which comprises the steps of: forming a crown within the blank; separating the blank from the strip, said blank comprising a central portion... | 12/25/1979 |
