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 |
| 7374036 | Roller conveyor A roller conveyor including a plurality of driven rollers disposed in two parallel tracks. With each driven roller a separate drive motor is associated, which takes the form of a low voltage motor. The drive motors are supplied from at least one low voltage source. ... | 05/20/2008 |
| 7299915 | Motorized pulley The present technique, in accordance with one exemplary embodiment, relates to a motorized pulley. The exemplary motorized pulley includes a rim or housing inside of which are disposed an electric motor and a gear assembly, which is configured to transfer torque of ... | 11/27/2007 |
| 7207433 | Motor-operated conveying roll, control device for a motor-operated conveying roll, roller conveying system and control method for a roller conveying system A motor-driven conveying roll for conveying systems includes a roll which is rotatably mounted with respect to a frame. A drive unit is fixed to the frame and the output shaft of the drive unit is frictionally connected to the inner surface of the hollow conveying r... | 04/24/2007 |
| 7198752 | Drive system for an apparatus for staining specimens For automatic transportation and lifting and lowering of specimens in an automatic stainer, a drive system comprises a motor (16) and a side wall assembly (40), the motor (16) being coupled on the drive side to a first (12) and a second (... | 04/03/2007 |
| 7014038 | Cargo power drive unit An apparatus (100) for conveying cargo is provided, comprising a support base (105) and drive assembly (110) pivotably mounted to the support base (105) for vertical movement. The drive assembly (110) comprises a roller (120... | 03/21/2006 |
| 6935487 | Adjustable length conveyor bed An adjustable length conveyor bed includes conveyor sections that are movably positioned relative to one another and that include at least one belt support or roller at an upper portion of the respective sidewalls. A fixed roller support is mounted to one section an... | 08/30/2005 |
| 6935486 | Bushing system for live roller conveyor The invention provides an improved live roller conveyor system for preventing damage to conveyed cases of goods when stopped upon live rollers. In an embodiment of the invention, a live roller comprises a drive shaft with a plurality of roller members rotatably affi... | 08/30/2005 |
| 6907984 | Motor mounting configuration for roll out table and method of retrofitting the same A motor mounting configuration for a roll out table reduces bearing wear and allows the motor of the roll out table to be quickly removed and reinstalled. A method for retrofitting a roll out table with a motor mount configuration that allows the motor to be quickly... | 06/21/2005 |
| 6854592 | Conveying apparatus A roller conveyor has three-phase synchronous motors and feed rollers. The three-phase synchronous motors are operationally coupled to the respective feed rollers. The three-phase synchronous motors are driven by a three-phase AC voltage supplied from a three-phase ... | 02/15/2005 |
| 6672449 | Motorized roller By housing a driver circuit board in a motorized roller having a built-in electric motor, the troublesome external wiring can be dispensed with, thereby facilitating the mounting of the roller on other apparatus. The heat generating inside the roller from... | 01/06/2004 |
| 6502690 | Driving roll The invention pertains to a driving roll for a roller way or conveyor belt in which at least one roller base (102) is provided with a universal coupling device (106, 114), modular drive wheels (104) corresponding to the coupling device (106, 114) are form... | 01/07/2003 |
| 6454258 | Device for treating plate-shaped work pieces, especially printed-circuit boards The plate-shaped workpieces are conducted through a treatment cell containing a treatment bath. Vertical slots for the passage of the workpieces are provided in the end walls of the treatment cell. Paired rods or pipes arranged loosely in the treatment ba... | 09/24/2002 |
| 6158574 | Roller conveyor A conveyor having a series of rollers in longitudinally spaced relationship along the length of two conveyor side rails, each roller extending across the space between the side rails. Each of the rollers has a drive gear mounted at one end. A set of idler... | 12/12/2000 |
| 6076820 | Rotation transfer device and paper feeding apparatus and image forming apparatus using the rotation transfer device In a rotation transfer device, a paper feeding apparatus and an image forming apparatus, transfer projections are disposed on coupling members provided on the ends of a driving shaft and a driven shaft, so that the movement of one transfer projection in t... | 06/20/2000 |
| 5950905 | Method and apparatus for welding container bodies In a guide and calibrating tool for guiding container bodies for welding, at least one of the guide rollers is driven. The drive is pneumatic, by compressed air blown by a nozzle onto recesses in the roller. The roller is driven only initially upon restar... | 09/14/1999 |
| 5915429 | Compact small diameter log sawmill A sawmill that is a compact integrated unit of a multiplicity of components all mounted on a common frame for performing different functions to produce pieces of lumber from a log. Logs can be processed that have a minimum diameter of approximately 2" and... | 06/29/1999 |
| 5902445 | Apparatus for bonding with a meltable composition A machine for applying a heat meltable composition includes a drive module, a light source module, and a nozzle module. The drive module attaches to the end of an elongate arm for moving the material with respect to the nozzle. The light module includes a... | 05/11/1999 |
| 5899320 | Conveyor The present invention relates to a conveyor adapted to operate by utilization of magnetic wheels and more particularly to a conveyor wherein the power from a drive source in transmitted to a large number of rollers through magnetic wheels capable of affec... | 05/04/1999 |
| 5890582 | Ball deck An improved ball deck having a plurality of driven balls arranged in rows, with each driven ball supported on a freely rotatable ball and a pair of drive wheels secured to parallel shafts positioned on either side of the driven balls in each row, and a tr... | 04/06/1999 |
| 5450945 | Intermediate roller for driving carrying rollers of an accumulating roller conveyor An intermediate roller for driving a carrying roller of an accumulating roller conveyor and including a sprocket wheel for engaging a chain of the accumulating roller conveyor, a mating gear for engaging a gear connected with the carrying roller, the mati... | 09/19/1995 |
| 5411132 | Accumulating roller conveyor A roller conveyor, comprises a frame having oppositely disposed substantially parallel sides; a plurality of pulleys disposed on each side of the frame, the pulleys on one side being coaxial with the pulleys on the other side of the frame; a drive operabl... | 05/02/1995 |
| 5372247 | Conveyor A conveyor having a drawn member which has an indentation longthway along the outer surface thereof, as right and left frame for holding transfer members of rollers which support transfer object. The indentation has at both edges grooves into which a mask... | 12/13/1994 |
| 5353919 | Device for supporting a conveying roller of a roller kiln The present invention pertains to a device for supporting a conveying roller of a roller kiln.... | 10/11/1994 |
| 5335780 | Multi-direction package movement device A conveying apparatus for moving articles such as pallets in a plurality of directions. The article is supported, at least partially, by a plurality of rollers mounted along parallel chains. The rollers are free to rotate, and are mounted to the chains wi... | 08/09/1994 |
| 5297670 | Apparatus for driving rollers in roller hearth kiln A roller driving apparatus for use in a roller hearth kiln has a kiln tunnel and kiln side walls. The apparatus includes a rotary drive shaft, a holder fixedly mounted at one end thereof on the rotary drive shaft, a metal connection pipe detachably mounte... | 03/29/1994 |
| 5289913 | Roller conveyor having an expandable and contractible flexible body drive correction A roller conveyor comprising a driven section (18) freely rotatably mounted on one end of a roller shaft (16) a sleeve member freely rotatably mounted on the same one end through a bearing device (31), a roller body (24) freely rotatably fitted on the dri... | 03/01/1994 |
| 5287977 | Roller system for use in a roller screen The roller screen arrangement includes a plurality of roller systems and a motor for driving the rollers of the roller system. Each roller system includes a drive shaft drivable by the motor driver and a roller associated with the drive shaft. One end of ... | 02/22/1994 |
| 5261526 | Conveyor system with driven balls, protectable against overloading A conveyor system with driven balls, in which each driven ball is supported by at least one driving roller. The point of contact between the driving roller and the ball is located at some distance below the horizontal plane through the center of the ball,... | 11/16/1993 |
| 5209342 | Belt drive for a roller conveyor A belt drive for a roller conveyor is provided to assure the firm application of the drive belt to the conveyor rollers regardless of manufacturing tolerances. Each pressing roller has a cylindrical base body as well as at least one belt-pressing disc adj... | 05/11/1993 |
| 5176246 | Padded chain drive for roller conveyors A load supporting conveyor having live rollers forming a load conveying path in which the rollers are driven by a chain having horizontally placed links and vertically positioned rollers with vertical axles that project upwardly toward the live rollers to... | 01/05/1993 |
| 5160017 | Rolling ball assembly and deck A rolling ball assembly for a rolling ball deck with a spherical ball (10), a support for the ball to permit free rotation about any horizontal axis through the ball; a pair of horizontal drive shafts (4, 5), one on either sie of the ball; a collar (8, 9)... | 11/03/1992 |
| 5147032 | Conveyor system with driven balls, protectable against overloading A conveyor system with driven balls, in which each driven ball is supported by at least one driving roller. The point of contact between the driving roller and the ball is located at some distance below the horizontal plane through the center of the ball,... | 09/15/1992 |
| 5131529 | Drive mechanism for a conveyor A drive mechanism for a conveyor. The conveyor includes a frame and a drive spindle that carries a conveyor belt is journalled for rotation on the frame. The spindle has a longitudinal passage and a pair of bushings are disposed in spaced relation in the ... | 07/21/1992 |
| 5129507 | Roller conveyor A roller conveyor in which articles are supported by idler rollers carried by a main frame and conveyed as the idler rollers are driven into rotation. A plurality of first idler rollers are arranged in one of two side frames of the main frame. A plurality... | 07/14/1992 |
| 5119922 | Apparatus for driving rollers in roller hearth kiln A roller driving apparatus in a roller hearth kiln which has a plurality of ceramic rollers arranged across a kiln tunnel. The ceramic rollers rotate to move articles to be heat treated while conveying them. A rotary drive shaft connects the ceramic rolle... | 06/09/1992 |
| 5107982 | Conveyor apparatus A roller conveyor apparatus includes a plurality of tapered tubular rollers, each rotatably mounted on an axle. The roller axles are supported by a frame so that, in one embodiment, the rollers are arranged to form a conveyor turn segment. A drive wheel, ... | 04/28/1992 |
| 5105935 | Accumulation type roller conveyor drive assembly An accumulation type roller conveyor drive assembly comprising a sprocket and drive wheel unit rotatably supported on a tubular cylindrical bushing mounted in a housing formed by separate upper and lower portions. These housing portions have sides formed ... | 04/21/1992 |
| 5080219 | Driver system roller apparatus A drive system roller apparatus used for a roller conveyor built in a shelf device or a roller conveyor installed on a floor, wherein at the outer periphery of a roller shaft supported at a frame is provided a roller body rotatable and supporting a load t... | 01/14/1992 |
| 5061380 | Screening system and method The invention is a screening device suitable for screening a liquid material having solid matter suspended in it, which comprises a number of sets of discs, the discs of each set being rigidly mounted on a shaft, with the discs on each shaft being separat... | 10/29/1991 |
| 5056653 | Roller conveyor A conveyor includes a frame and a series of closely spaced rollers. Each roller has an outer circumferential surface, a first end portion journalled on an axle supported by the frame on one side of the conveyor and a second end portion journalled on an ax... | 10/15/1991 |