Patents by Inventor Arthur Jack Clarke
Arthur Jack Clarke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8308589Abstract: A belt and chain drive for vehicles or for use in drive technology with an input shaft and an output shaft supported on a frame, the input shaft and the output shaft project out of the frame, with the following features: a) gear transmissions with gear wheels, which are embodied as belt and chain drives, are located between the input shaft and the output shaft, b) all of the gear wheels are constantly in rotation during operation, c) the gear transmissions located between the input shaft and the output shaft are embodied as belt and chain drives with toothed belts as traction mechanisms and with pulleys as gear wheels, d) the traction mechanism are reinforced with aramide, Kevlar, carbon fibers or other fibrous materials, is characterized in that e) the traction mechanism is pressed into a kidney-like shape onto the pulleys by at least one component during no-load rotation, and that under the effect of load this component does not touch the traction mechanism, and f) the kidney-like shape of the traction mechType: GrantFiled: March 20, 2008Date of Patent: November 13, 2012Assignee: The Gates CorporationInventors: Karlheinz Nicolai, Arthur Jack Clarke
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Patent number: 8057337Abstract: A debris ejecting sprocket comprising a body (100), a plurality of teeth (101) projecting from the body, a plurality of grooves (102) in alternating arrangement with the teeth, each groove receives a belt tooth, a cavity (103) disposed radially inward from each groove and communicating with the groove, the cavity further comprises a land (111) for supporting the belt, the land disposed between the groove and the cavity, and the cavity comprising a surface (104) disposed at an angle (?) with respect to an axial direction (A-A).Type: GrantFiled: January 20, 2009Date of Patent: November 15, 2011Assignee: The Gates CorporationInventor: Arthur Jack Clarke
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Patent number: 7980956Abstract: A shaft coupling with a flexible annular sleeve, a driver end piece, and a driven end piece. The end pieces have a plurality of axially projecting prongs arranged so that the driver prongs loosely interlock in the spaces between the driven prongs with a gap between each pair of prongs. The sleeve fits snugly around the periphery of the loosely interlocked prongs. Each prong has at least one prong groove in its outer periphery. Each of two peripheral edges may be shaped to form a groove flank, and each set of two adjacent groove flanks on adjacent prongs may form a gap groove. The sleeve has a plurality of inner teeth including a plurality of groove teeth in alternating arrangement with a plurality of gap teeth. The prong grooves and groove teeth mesh, and the gap grooves and gap teeth mesh. Groove teeth may be bigger than gap teeth.Type: GrantFiled: December 15, 2009Date of Patent: July 19, 2011Assignee: The Gates CorporationInventors: Jonathan Andrew Kneeshaw, John W. Black, Arthur Jack Clarke
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Patent number: 7763336Abstract: A flexible shaft coupling sleeve comprising a sleeve shaped body having a central annular portion and a coupling receiving portion at each of two opposing sleeve ends, and a coupling device incorporating such sleeve. The sleeve's coupling receiving portions include axially extending teeth on their inner surfaces. The flexible shaft coupling sleeve is formed of a polyurethane elastomer composition.Type: GrantFiled: May 20, 2004Date of Patent: July 27, 2010Assignee: The Gates CorporationInventors: Arthur Jack Clarke, Richard Bell, Joseph R. Duke, Jr., William W. L. Wu
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Publication number: 20100184547Abstract: A debris ejecting sprocket comprising a body (100), a plurality of teeth (101) projecting from the body, a plurality of grooves (102) in alternating arrangement with the teeth, each groove receives a belt tooth, a cavity (103) disposed radially inward from each groove and communicating with the groove, the cavity further comprises a land (111) for supporting the belt, the land disposed between the groove and the cavity, and the cavity comprising a surface (104) disposed at an angle (?) with respect to an axial direction (A-A).Type: ApplicationFiled: January 20, 2009Publication date: July 22, 2010Inventor: Arthur Jack Clarke
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Publication number: 20100093450Abstract: A shaft coupling with a flexible annular sleeve, a driver end piece, and a driven end piece. The end pieces have a plurality of axially projecting prongs arranged so that the driver prongs loosely interlock in the spaces between the driven prongs with a gap between each pair of prongs. The sleeve fits snugly around the periphery of the loosely interlocked prongs. Each prong has at least one prong groove in its outer periphery. Each of two peripheral edges may be shaped to form a groove flank, and each set of two adjacent groove flanks on adjacent prongs may form a gap groove. The sleeve has a plurality of inner teeth including a plurality of groove teeth in alternating arrangement with a plurality of gap teeth. The prong grooves and groove teeth mesh, and the gap grooves and gap teeth mesh. Groove teeth may be bigger than gap teeth.Type: ApplicationFiled: December 15, 2009Publication date: April 15, 2010Applicant: THE GATES CORPORATIONInventors: Jonathan Andrew Kneeshaw, John W. Black, Arthur Jack Clarke
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Patent number: 7658678Abstract: A shaft coupling with a flexible annular sleeve, a driver end piece, and a driven end piece. The end pieces have a plurality of axially projecting prongs arranged so that the driver prongs loosely interlock in the spaces between the driven prongs with a gap between each pair of prongs. The sleeve fits snugly around the periphery of the loosely interlocked prongs. Each prong has at least one prong groove in its outer periphery. Each of two peripheral edges may be shaped to form a groove flank, and each set of two adjacent groove flanks on adjacent prongs may form a gap groove. The sleeve has a plurality of inner teeth including a plurality of groove teeth in alternating arrangement with a plurality of gap teeth. The prong grooves and groove teeth mesh, and the gap grooves and gap teeth mesh. Groove teeth may be bigger than gap teeth.Type: GrantFiled: January 17, 2007Date of Patent: February 9, 2010Assignee: The Gates CorporationInventors: Jonathan Andrew Kneeshaw, John W. Black, Arthur Jack Clarke
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Publication number: 20080171603Abstract: A shaft coupling with a flexible annular sleeve, a driver end piece, and a driven end piece. The end pieces have a plurality of axially projecting prongs arranged so that the driver prongs loosely interlock in the spaces between the driven prongs with a gap between each pair of prongs. The sleeve fits snugly around the periphery of the loosely interlocked prongs. Each prong has at least one prong groove in its outer periphery. Each of two peripheral edges may be shaped to form a groove flank, and each set of two adjacent groove flanks on adjacent prongs may form a gap groove. The sleeve has a plurality of inner teeth including a plurality of groove teeth in alternating arrangement with a plurality of gap teeth. The prong grooves and groove teeth mesh, and the gap grooves and gap teeth mesh. Groove teeth may be bigger than gap teeth.Type: ApplicationFiled: January 17, 2007Publication date: July 17, 2008Inventors: Jonathan Andrew Kneeshaw, John W. Black, Arthur Jack Clarke
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Patent number: 6283868Abstract: A flexible shaft coupling element comprising a sleeve shaped body having a central annular portion and a coupling receiving portion at each of two opposing sleeve ends. The coupling receiving portions include axially extending teeth on their inner surfaces. The flexible shaft coupling element is characterized in that the annular portion possesses a torsional shear capacity and the area defining the axially extending teeth possesses a shear capacity, and the tooth shear capacity exceeds the annular portion torsional shear capacity.Type: GrantFiled: June 17, 1999Date of Patent: September 4, 2001Assignee: The Gates CorporationInventors: Arthur Jack Clarke, Kevin John Francis Whitfield
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Patent number: D544894Type: GrantFiled: February 7, 2006Date of Patent: June 19, 2007Assignee: The Gates CorporationInventor: Arthur Jack Clarke
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Patent number: D545333Type: GrantFiled: February 7, 2006Date of Patent: June 26, 2007Assignee: The Gates CorporationInventor: Arthur Jack Clarke
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Patent number: D592107Type: GrantFiled: July 17, 2007Date of Patent: May 12, 2009Assignee: The Gates CorporationInventor: Arthur Jack Clarke