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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 |
| 7255728 | Apparatus and method for degassing liquids Apparatus and method for degassing liquids particularly cationic monomers. Fluid comprising liquid to be degassed together with sweep gas is admitted tangentially into a column (10) and forced down the column by a tubular baffle (16) which defines, wit... | 08/14/2007 |
| 6776823 | Gas/liquid separating devices Gas/liquid separating devices include a separator (1) for separating a mixed gas/liquid flow (M). A liquid drain (2) communicates with the separator and defines a liquid storage chamber (30). The liquid drain serves to temporarily store a liquid... | 08/17/2004 |
| 6471756 | Bubble-removing apparatus A bubble-removing apparatus has a main body having a central axis, a main chamber, an inflow port for introducing a fluid containing entrained bubbles tangentially into the main chamber so that the fluid is caused to rotate in the main chamber about the c... | 10/29/2002 |
| 6090299 | Three-phase rotary separator The method of operating rotating separator apparatus, to which fluid, including gas and liquids is supplied in a fluid jet via a nozzle, which includes separating the liquids from the gas in the stream, at a first zone within the rotating apparatus, and s... | 07/18/2000 |
| 5961700 | Filter system for removal of gas and particulates from cellular fluids A gas elimination system includes a gas elimination device and a priming system. The gas elimination device includes a vortex chamber that forms a vortex in the fluid flowing into the chamber and a particulate filter that removes particles from the fluid.... | 10/05/1999 |
| 5858070 | Apparatus for cleaning a hydraulic fluid An apparatus for cleaning hydraulic fluid includes a centrifugal fluid-spinning disk arranged in a housing, of which an upper portion forms a vapor chamber and a lower portion forms a fluid collecting basin. A vacuum pump is connected to the housing throu... | 01/12/1999 |
| 5332501 | Apparatus for removing liquid from an air-liquid separator An apparatus for removing liquid from an air liquid separator is disclosed having a rotatable chamber in communication with the liquid collecting portion of the air-liquid separator such that liquid from the separator may enter the interior of the chamber... | 07/26/1994 |
| 4904284 | Centrifugal type gas-liquid separator An improved centrifugal type gas-liquid separator is composed of a rotatable hollow disc-shaped gas-liquid separation chamber having a separated liquid outlet on its outer circumferential surface, a housing surrounding the gas-liquid separation chamber li... | 02/27/1990 |
| 4390350 | Sterilization of bacterial concentrates In a process for sterilization of liquids like milk, containing gases such as air and carbon dioxide and microbes, a microbal enriched partial stream is separated by centrifugation and is degassed in a first step, whereupon the so treated partial stream i... | 06/28/1983 |
| 4187088 | Down flow centrifugal separator A gas-liquid separator of the centrifugal type wherein the mixture is first introduced into a top chamber of a vertical vessel where it is given a spinning motion forming a vortex with liquid initially separated and drained to an intermediate chamber and ... | 02/05/1980 |
| 4140635 | Purification device A purification device for utilizing a gas to purify a liquid, principally useable as an artificial lung, and employs a simple mixing tube so as to assure the mixing of a purification gas with the liquid, with the liquid and gas mixture exiting from the mi... | 02/20/1979 |
