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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 |
| 7284936 | Tool bit and collet assembly and method A tool bit and collet assembly, and method of assembling, wherein there is a collar for holding the collet in the radially inward position to thereby hold the tool bit. Camming surfaces are between the tool bit and the collet, and between the collet and the collar, ... | 10/23/2007 |
| 6290241 | Fixed-length collet chuck assembly A fixed length collet chuck assembly for holding a workpiece in which the collet only translates radially and not axially is provided. The fixed length collet chuck has a longitudinal, central axis and includes a chuck body assembly and a collet. As a dra... | 09/18/2001 |
| 6264208 | Chuck assembly To provide a chuck assembly which is superior in practical usability and workability in clamping and fixing a tool to a spindle without fail and with ease by lever-operation of a specialized operational jig, a taper portion is provided on at least one of ... | 07/24/2001 |
| 6079917 | Horizontal lever actuated chuck A rotary power tool is provided having a remotely actuated chuck device. The chuck includes an outer sleeve member that is axially movable relative to the drive spindle between a gripping and release position. A sleeve actuating device is provided having ... | 06/27/2000 |
| 5957468 | Collet device The invention relates to a collet device, in particular for snap closure attachments for gaseous and/or liquid media which comprises a clamping plunger and a plurality of collets each with a connection end and a bearing end. The bearing ends of the collet... | 09/28/1999 |
| 5911547 | Mount for tool holder on spindle shaft A spindle centered on an axis and formed with an axially forwardly open recess centered on the axis is secured to a tool holder formed with a tubular extension projecting axially rearward and fitted complementarily in the recess by a mount having an actua... | 06/15/1999 |
| 5762345 | Force-transmission mechanism using flatted barrel elements A collet-operating mechanism utilizes an array of wedge members for the transmission of closing force to the pressure collar. The wedge members are of flatted barrel-shaped configuration to optimally cooperate, in line contact relationships, with bearing ... | 06/09/1998 |
| 5269543 | Mechanism for closing a collet A collet-operating mechanism utilizes an array of wedge members for the transmission of closing force to the pressure collar. The wedge members are uniquely configured to optimally cooperate with a convexly arcuate bearing surface on the supporting sleeve... | 12/14/1993 |
| 5067735 | Clamping device for locking the workpiece-carrying collet in automatic machine tools A clamping device for locking the workpiece-carrying collet of an automatic machine tool has a spring made of flexible plastic material. The spring has a flat elasticity characteristic and cooperates with an adjusting nut and an indicator nut. Pivotable c... | 11/26/1991 |
| 4509765 | Force transmitting wedge structure A collet closing mechanism utilizes an array of wedge members as the force transmitting elements, to maximize the area for contact with associated bearing surfaces. The device is highly durable, safe and effective for its intended purposes.... | 04/09/1985 |
| 4378186 | Support for broached workpieces The device allows the broaching of thin-walled workpieces with high precision and an excellent surface condition. It comprises mainly a fixed support defining a radial abutment surface, a sleeve defining ramps, wedge-shaped members bearing against said ra... | 03/29/1983 |
| 3984114 | Chuck with anti-centrifugal force feature A rotary chuck with lever operated jaws, in which the levers are constructed to counteract the force-reducing effect of centrifugal force on the work-gripping jaws. The levers include a counterbalancing portion large with respect to either arm of the leve... | 10/05/1976 |
