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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 |
| 7402973 | Power drive unit with unit load device sensor A cargo power drive unit includes a motor and at least one drive roller element coupled to the motor. The power drive unit further includes a light transmitter for emitting light and a light receiver for measuring light. The power drive unit measures an amount of am... | 07/22/2008 |
| 7398874 | Belt-driven accumulator for curved roller segment An assembly is provided for moving the drive belt of a roller conveyor system between a first position in which the drive belt engages the rollers to rotate the rollers and a second position spaced from the rollers, the second position permitting conveyed articles t... | 07/15/2008 |
| 7387199 | Device of handling roller for passbook A passbook conveyance roller device comprises a conveyance roller and a pinch roller, which are arranged to be opposed to each other, to convey a passbook. The conveyance roller comprises an inner ring member connected to a drive shaft, a metallic outer ring member,... | 06/17/2008 |
| 7364035 | Airless accumulation conveyor An accumulation conveyor and method, according to the invention, includes providing a plurality of tandem accumulation zones, each of the zones including a conveying surface and at least one drive roller selectively driving the conveying surface. A drive member belo... | 04/29/2008 |
| 7300055 | Image forming apparatus The object is to provide an image forming apparatus in which the copy sheet can be transferred with stable velocity and high accuracy even if there is variation in diameter due to machining tolerance. A pair of roller for feeding copy sheet pinching the sheet betwee... | 11/27/2007 |
| 7290649 | Roller arrangement for an accumulating roller conveyor The invention relates to a roller arrangement (7) for a stowing roller conveyor, comprising a stationary roller axle (20) arranged in a support frame (4) of the stowing roller conveyor, with a driving roller (9) and a conveying roller ( | 11/06/2007 |
| 7261201 | Chain-driving mechanism and conveyor apparatus A chain-driving mechanism and a conveyor apparatus of the present invention include a plurality of rollers (20) arranged to convey to-be-conveyed objects, a driving mechanism that drives the rollers (20) in conjunction with each other, and a motor (... | 08/28/2007 |
| 7234585 | Perfected drum for filter-tipped cigarette manufacturing machines A drum for a filter-tipped cigarette manufacturing machine is fitted to and projects from a frame of the manufacturing machine, and has a drive shaft; an outer shell connected in angularly fixed and axially sliding manner to the drive shaft; and an axial guide membe... | 06/26/2007 |
| 7181845 | Roller with integral bearing assembly mount and method for manufacturing same An improved conveyor roller (100) having a belt-engagement length (103) between a first end (101) and second end (102), and a necked-down portion (109) adjacent the second end, and a method of manufacturing such a roller are disclo... | 02/27/2007 |
| 7146790 | Combine harvesters An anti-wrapping device is described for preventing crop from being wrapped about the central shaft of a reel rotatably supported on side arms of a header of a combine. The device comprises an annular cover plate for securing to the axial end of the reel to prevent ... | 12/12/2006 |
| 7125012 | Rotatable feed wheel for sheet converting machine A feed wheel includes a hub and a discontinuous tread removably fitted about the hub. At leading and trailing ends of the discontinuous tread are mateable non-planar female and male surfaces which interfit with one another and tend to interlock the tread ends togeth... | 10/24/2006 |
| 7048112 | Food grade conveyor A yoke for a food grade conveyor is formed of UHMW plastic molded as a single unit having left and right upright portions connected by vertically separated upper and lower cross portions. Each cross portion has a stanchion to provide a support face or ledge for conn... | 05/23/2006 |
| 7028825 | Conveyor roller assembly, conveyor roller insert and axle for conveyor roller A roller insert for a conveyor roller tube including a cartridge having inner and outer ends and configured to be inserted into an end of a conveyor roller tube; a stub axle positioned within the cartridge, the stub axle including an elongate body portion, a cylindr... | 04/18/2006 |
| 7021455 | Wet chip pick-up assembly A wet chip pick-up assembly includes a slotted rotary drum. A comb member is seated for movement in each of the drum slots. A friction drive assembly frictionally engages the drum causing the drum to rotate which, in turn, causes the comb members to rotate. ... | 04/04/2006 |
| 6997304 | Accumulating conveyor A preferred embodiment of an accumulating conveyor system has at least one shoe slideably connected to an endless chain. Each shoe includes a pair of opposing rollers, one of which is engageable with the endless chain when the shoe is positioned adjacent an upper su... | 02/14/2006 |
| 6962249 | Conveying device A conveying device (10) for transporting transported goods includes at least one profile rail (12), at least one transported goods support (14) that is supported by the at least one profile rail and is moveable along the profile rail, and a driv... | 11/08/2005 |
| 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 |
| 6918486 | Conveyor chain To provide an improved conveyor chain, which can convey even a conveying object having high center of gravity at high speed without felling it down in a curved conveying section. A conveyor chain according to the present invention has a plurality of links (10... | 07/19/2005 |
| 6918708 | Discharging roller, method of manufacturing the same, and recording apparatus incorporating the same In order to manufacture a discharging roller which discharges a recording medium from a recording apparatus, there are a first die formed with a first recess extending in an axial direction of a shaft portion of the discharging roller, and a second die formed with a... | 07/19/2005 |
| 6820736 | Conveying apparatus A conveying apparatus (1) is composed of several conveying modules (2) each having a controller (40) for control of a motorized roller (6) having a motor (16) incorporated in it. A motor-controlling section (45) installed in... | 11/23/2004 |
| 6782996 | Axle cartridge for conveyor roller A conveyor roller includes at least one axle cartridge and is mounted at opposite sidewalls of a conveyor. The axle cartridge includes a bearing assembly at an outer end and an inner support at an inner end. The bearing assembly provides rotational support of a roll... | 08/31/2004 |
| 6772874 | Roller conveyor Materials are conveyed by a roller conveyor which comprises a pair of conveyor frames and a plurality of rollers rotatably mounted between the pair of conveyor frames. The roller comprises a roller body and a driving force receiver connected to a motor. When the dri... | 08/10/2004 |
| 6719125 | Conveying and/or storage device for packaged goods A transport and storage device for packaged goods has at least one roller path for goods to be transported and stored, wherein the at least one roller path has rollers. Force transmitting elements are arranged rotatably on the rollers, wherein the force transmitting... | 04/13/2004 |
| 6499586 | Feed roller for recording medium A feed roller for a recording medium 1 includes a roller shaft 2 supplied with rotating force for feeding the recording medium, a roller body 3 made of an elastic material and provided with a center bore extending in a longitudinal direction through which... | 12/31/2002 |
| 6454082 | Roller conveyor system A roller conveyor system is disclosed having a frame with a pair of spaced apart rails and at least one roller assembly having an elongated shaft. A first bearing assembly is secured to one rail while a second bearing assembly is secured to the other rail... | 09/24/2002 |
| 6213177 | Feed wheel A feed wheel (24) for use in a wood working machine (10) in which the feed wheel is rotated while in driving engagement with a wood piece to drive the wood piece past a wood working element. The feed wheel is preferably driveable in one direction only and... | 04/10/2001 |
| 5881862 | Torque limiting roller drive for conveyors In a power driven roller conveyor having a plurality of rollers mounted on a driven shaft for supporting and transporting a work piece with a limiting drive force. The drive shaft is provided with concentrically disposed spacers, rollers, and bearings whi... | 03/16/1999 |
| 5878869 | Roller conveyer The invention relates to a roller conveyer that includes a power rack, a motor drive mounted in the power rack, and two track and roller units bilaterally mounted on the power rack. The track and roller unit includes a track, spaced roller assemblies moun... | 03/09/1999 |
| 5746304 | Speed increasing and accumulating conveyor chain The speed increasing and accumulating conveyor chain of the present invention can convey a conveyed object faster than the running speed of the chain, and keep the conveyed object stopped while continuously running the chain itself. The load roller with a... | 05/05/1998 |
| 5582287 | Drive chain for accumulation conveyor A zero-pressure accumulating conveyor including a bed defined by rotatable rollers mounted in parallel sidewalls and powered by an endless drive chain. Pneumatic actuators lift the drive chain into engagement with the rollers to empower same. Sensor rolle... | 12/10/1996 |
| 5485911 | Interior line-shaft driven powered roller conveyor A cantilevered-shaft type roller conveyor in which roller units are cantilevered inwardly from side frames. Each roller unit includes a sleevelike roller member supported directly on and surrounding a drive member, the latter being rotatably supported on ... | 01/23/1996 |
| 5188215 | Apparatus for the transportation of goods to be conveyed The roller shafts 1 of an apparatus for the transportation of goods to be conveyed are driven by a longitudinal shaft 15 via a respective angle gear 13, 14. A friction clutch 3 is provided on the longitudinal shaft 15. The two clutch elements 6 and 7 of t... | 02/23/1993 |
| 5147024 | Roller conveyor With the screw driven into the female-threaded hole which radially extends through the hollow roller and opens to the outer peripheral surface of the cylindrical portion forming a part of the sprocket, the hollow roller is coupled to the sprocket and func... | 09/15/1992 |
| 5076421 | Sprocket clutch A clutch assembly for an accumulating roller conveyer such that torque transmission is accomplished by using clutch plates of deformable material which in association engage with the conveyer drive and conveyer rollers to allow the bearings to deform the ... | 12/31/1991 |
| 5038923 | Mini-roller conveyor with variable pressure traction sleeve Mini-roller shafts are provided at opposite ends with resilient traction sleeves and with oversized transport sleeves therebetween. Bearing members are provided to position the traction sleeves for frictional engagement with endless drive members extendin... | 08/13/1991 |
| 5012920 | Roller conveyor systems A drive sprocket is rotatably mounted on the end of a shaft of a roller and is engaged with a drive chain. Coupled with the drive sprocket, to rotate with it, is a first drive member, having a frusto-conical axially directed annular drive transmission sur... | 05/07/1991 |
| 4993541 | Triple conveyor A triple conveyor includes a chain gear, a coaxial roller, and end wheels of a coaxle whereby the conveyor can transport products quickly and accurately, and reduce the noise and vibration of the conveyor so as to allow for the use of robots and the elimi... | 02/19/1991 |
| 4960202 | Friction control for bearing surface of roller A roller element for a powered-roller tarnsfer system has a plurality of lubricant pressure relief areas about or in the bearing surface to increase and provide consistent rotary drive power transmitted from a powered axle to the roller.... | 10/02/1990 |
| 4930618 | Power free triple conveyor This invention relates to a roller assembly for a power free triple conveyor having an overload release device which includes a sprocket mounted on a shaft through a bearing, a roller separately formed and freely rotated on the sprocket, a plurality of sp... | 06/05/1990 |
| 4832656 | Power roll conveyor with adjustable torque sensitive coupling A powered conveyor roller having a frictional coupling inside the roller drivingly connecting the roller to a drive shaft extending actually through the roller. The coupling includes a flat spring wrapped around the shaft to form a frictional engagement w... | 05/23/1989 |
