Patents Represented by Attorney H. W. Oberg
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Patent number: 5971879Abstract: A belt reinforcing material of at least two layers where one layer is a twined fabric and the other layer is a woven fabric that are attached to each other such as by needle-punching. A toothed power transmission belt with a plurality of teeth spaced along one side of the belt includes the aforementioned fabric disposed at a peripheral surface that includes the belt teeth.Type: GrantFiled: April 22, 1997Date of Patent: October 26, 1999Assignee: The Gates CorporationInventor: William L. Westhoff
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Patent number: 5964674Abstract: A belt tensioner of the Zed type with a base member, a pivot-arm, a pivot-pin, a pulley attached to the pivot-arm, a torsional spring attached between the base member and pivot-arm, and wherein the base member has a "tube pan" shape with a cantilevered inner wall that supports the pivot-pin, a cantilevered outer wall, and a bottom wall interconnecting the inner and outer walls and oriented with the bottom wall juxtaposed the pivot-arm. Optionally, the spring is connected to a damping mechanism that generates a reaction force in generally the same direction as a belt force or hub load. In another embodiment, a second, damping spring generates a reaction force in generally the same direction as the belt force with a constant damping force.Type: GrantFiled: March 21, 1997Date of Patent: October 12, 1999Assignee: The Gates CorporationInventors: Alexander Serkh, H. W. Oberg
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Patent number: 5951422Abstract: A hub is spun rolled formed of a portion of metal radially displaced from a side of a disc of sheet metal. An annular collar formed of an annular part of the disc extends inward of the hub and creates a blind bore. The collar is integral with the hub and is formed of the same sheet metal. The so formed hub that is integral to a web formed of the disc, and the collar; the web may be connected to a rim, or the extremity of the disc may be shaped into a rim to form a pulley.Type: GrantFiled: June 24, 1996Date of Patent: September 14, 1999Assignee: The Gates CorporationInventors: John P. Roes, Yahya Hodjat, Michael H. Kutzscher
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Patent number: 5947853Abstract: A pulley with an integral hub spun-roll formed of a disc of sheet metal where the hub has a thickness greater than the thickness of the sheet metal. The hub has a bore and external surface for attaching to other components.Type: GrantFiled: August 15, 1996Date of Patent: September 7, 1999Assignee: The Gates CorporationInventors: Yahya Hodjat, Michael H. Kutzscher
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Patent number: 5938552Abstract: A tensioner with a base, a pivot-arm that oscillates about a pivot secured to the base, a pulley attached to the pivot-arm, a compression spring with a first end operatively connected to the pivot-arm and a second end operatively connected to a shoe that presses a convex surface of the shoe against a concave arcuate surface of the pivot-arm, to the shoe held in place against a protuberance secured to the base by a balance of forces.Type: GrantFiled: June 2, 1998Date of Patent: August 17, 1999Assignee: The Gates CorporationInventor: Alexander Serkh
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Patent number: 5930872Abstract: A device is provided for mounting and deploying a shrinkable clamp for hose and tubing. The device includes an annular housing in the form of a partial cylinder having a first diameter and longitudinal opening defined along its length by first and second circumferentially spaced longitudinal side edges. A first extension member projects circumferentially from the first side edge into the longitudinal opening, while a second extension member projects circumferentially from the second side edge into the longitudinal opening and is aligned adjacent to the first extension member to define therewith along with the partial cylinder a circumferential outer surface for the housing. A locking mechanism interacts with the first and second extension members for maintaining the relative positions of the first and second extension members and the size of the first diameter when the housing is subjected to a radially compressive force.Type: GrantFiled: September 22, 1997Date of Patent: August 3, 1999Assignee: The Gates CorporationInventors: David McBride, Richard S. Thornwald
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Patent number: 5918863Abstract: A vehicle suspension with an airspring of the type with a flexible sleeve forming a chamber portion and a rolling lobe portion. The chamber portion is attached to a tilted closure and the rolling lobe portion of the airsleeve is attached to a piston that is transversely moved which introduces a shear force into the airsleeve and increases a surface area on an upward tilted side of the sleeve so as to provide side load compensation and where the axial length of the rolling lobe is substantially equalized to enhanced flexural life. A method of imparting a side load force with an airspring fastened between a fixed member and reciprocating member of a vehicle suspension, is provided by tilting a closure member of the airspring, transversely moving a piston connected to a rolling lobe portion of the airspring while distorting a chamber portion of the airspring, and eccentrically offsetting the piston in a manner that tends to equalize an axial length of a rolling lobe.Type: GrantFiled: November 26, 1997Date of Patent: July 6, 1999Assignee: The Gates CorporationInventors: Michael L. Crabtree, Richard F. Stieg
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Patent number: 5823904Abstract: A pulley with an integral hub spun-roll formed of a disc of sheet metal where the hub has an annular ring extending radially outward of the hub and reinforcing the hub. Optionally, the hub has as integral flange that facilitates removal of the pulley from a shaft.Type: GrantFiled: November 19, 1996Date of Patent: October 20, 1998Assignee: The Gates CorporationInventors: Yahya Hodjat, Michael H. Kutzscher
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Patent number: 5807194Abstract: A synchronous power transmission belt with a belt body of cast urethane belt material, belt teeth formed of the body, a wear-resistant fabric reinforcement disposed along peripheral surfaces of the belt teeth, and a tensile member of helically spiraled cord embedded in the belt body and of a yarn of carbon fiber.Type: GrantFiled: October 31, 1996Date of Patent: September 15, 1998Assignee: The Gates CorporationInventors: Paul S. Knutson, Walter L. Dodson
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Patent number: 5752692Abstract: A telescopic strut for a vehicle suspension of the airspring type with a flexible sleeve forming a chamber portion and a rolling lobe portion. The chamber portion is attached to a tilted closure and the rolling lobe portion of the airsleeve is attached to a piston that is transversely moved which introduces a shear force into the airsleeve and increases a surface area on an upward tilted side of the sleeve so as to provide side load compensation and where the axial length of the rolling lobe is substantially equalized to enhanced flexural life.Type: GrantFiled: January 6, 1997Date of Patent: May 19, 1998Assignee: The Gates CorporationInventors: Michael L. Crabtree, Richard F. Stieg
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Patent number: 5721177Abstract: A heat stabilized, moldable, consolidated nonwoven panel resistant to shrinkage when molded during a subsequent thermoforming operation, said panel being substantially stiff and comprised of a nonwoven structure of reinforcement fibers admixed throughout and encapsulated by a thermoplastic resin formed from melted and compressed thermoplastic fibers having a melting point less than the melting point of said reinforcement fibers, said reinforcement fibers comprising 60-20 percent per volume of said panel and having a length of from 1-6 inches sufficient to enable said panel to achieve at least about 50 percent elongation during thermoforming.Type: GrantFiled: June 17, 1994Date of Patent: February 24, 1998Assignee: Gates Formed-Fibre Products, Inc.Inventor: George A. Frank
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Patent number: 5697890Abstract: A tongue depressor with an elongate body having a tongue depressing end portion extending at a downward angle from the body and in the form of a ring with an aperture.Type: GrantFiled: June 6, 1995Date of Patent: December 16, 1997Inventors: John J. Kolfenbach, Michael J. Cichon
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Patent number: 5683773Abstract: Chlorine-containing polyethylene- and polyether-based elastomer compositions having excellent heat resistance and chemical resistance, which are heat stabilized with from about 1 to about 25 parts per hundred weight of the elastomer of barium sulfate, and high temperature and chemical resistant molded and extruded products including automotive hose and cable jacketing incorporating such elastomer compositions.Type: GrantFiled: February 28, 1997Date of Patent: November 4, 1997Assignee: The Gates CorporationInventor: Dennis Kemper
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Patent number: 5647400Abstract: Polyfluorocarbon/elastomer bonded laminates are disclosed. Flexible, durable chemical-resistant hose for use in industrial applications, and improved construction for such hose including inner tube members characterized by a dual-layer feature employing such laminate, is also disclosed. This feature comprises an adhesive elastomeric composition which bonds a polyfluorocarbon thermoplastic veneer to a substantially non-polar chemical-resistant carbon-based elastomeric or thermoplastic elastomeric outer layer. The adhesive elastomeric composition useful in the present invention comprises unsaturated polymeric dicarboxylic acids, or derivative adducts, of ethylene propylene diene terpolymer.Type: GrantFiled: May 5, 1995Date of Patent: July 15, 1997Assignee: The Gates CorporationInventors: Bhargav Jani, Fredrick Chipps, Joe Haney
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Patent number: 5647813Abstract: A belt tensioner of the Zed type with a pivot-arm attached to an off-set cylindrical member supported by sleeve-type bushings with axially spaced-apart bearing surfaces disposed over a pivot where the bearing surfaces have an axial length that is sized for an average pressure contact. The tensioner may include a spring activated damping mechanism with a brake shoe having oppositely facing inside ramp surfaces which operate in such a manner to provide a normal force that is greater than a spring force applied to the brake shoe.Type: GrantFiled: December 18, 1995Date of Patent: July 15, 1997Assignee: The Gates CorporationInventor: Alexander Serkh
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Patent number: 5645504Abstract: A power transmission belt with a body of belt material and belt teeth formed of the body and covered with a knitted fabric with a 1.times.1 rib construction.Type: GrantFiled: September 29, 1995Date of Patent: July 8, 1997Assignee: The Gates CorporationInventor: William L. Westhoff
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Patent number: 5632697Abstract: A belt tensioner of the Zed type with a pivot-arm attached to a cylindrical member and including a spring activated damping mechanism with a brake shoe having oppositely facing inside ramp surfaces which operate in such a manner to provide a normal force that is greater than a spring force applied to a brake shoe that engages the cylindrical member.Type: GrantFiled: December 18, 1995Date of Patent: May 27, 1997Assignee: The Gates CorporationInventor: Alexander Serkh
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Patent number: 5610217Abstract: Elastomeric compositions for incorporation in articles subject to dynamic loading, comprising an ethylene-alpha-olefin elastomer which is reinforced with a filler and a metal salt of an .alpha.-.beta.-unsaturated organic acid. This composition is cured using a free-radical promoting material. The invention includes articles subject to dynamic loading incorporating these elastomeric compositions, and belting, including power transmission and flat belting incorporating as their main belt body portions these elastomeric compositions.Type: GrantFiled: October 30, 1995Date of Patent: March 11, 1997Assignee: The Gates CorporationInventors: Larry Yarnell, Bobbie E. South
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Patent number: 5597235Abstract: A twin screw extruder for mixing carbon black with rubber and with a first mixing zone with screw elements for heating rubber to about 130.degree.-220.degree. C., and a second port for adding carbon black and a third port for adding oil.Type: GrantFiled: November 15, 1994Date of Patent: January 28, 1997Assignee: The Gates CorporationInventors: Roger P. Barnes, Jonathan A. Johnston
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Patent number: 5591094Abstract: A tensioner with a pivot-arm that is free to move toward a belt of a belt drive system to tighten the belt and is also free to move away from the belt a predetermined amount to slacken the belt and adjust belt tension while avoiding tooth jump in extreme torque reversal situations. An adjustable stop is provided to restrict movement of the pivot-arm and inhibit tooth jump as the tensioner pulley moves to slacken the belt.Type: GrantFiled: November 1, 1995Date of Patent: January 7, 1997Assignee: The Gates CorporationInventors: Ian Farmer, Gregory A. St. Denis