Patents Represented by Attorney H. W. Oberg
  • Patent number: 5971879
    Abstract: 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: Grant
    Filed: April 22, 1997
    Date of Patent: October 26, 1999
    Assignee: The Gates Corporation
    Inventor: William L. Westhoff
  • Patent number: 5964674
    Abstract: 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: Grant
    Filed: March 21, 1997
    Date of Patent: October 12, 1999
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, H. W. Oberg
  • Patent number: 5951422
    Abstract: 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: Grant
    Filed: June 24, 1996
    Date of Patent: September 14, 1999
    Assignee: The Gates Corporation
    Inventors: John P. Roes, Yahya Hodjat, Michael H. Kutzscher
  • Patent number: 5947853
    Abstract: 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: Grant
    Filed: August 15, 1996
    Date of Patent: September 7, 1999
    Assignee: The Gates Corporation
    Inventors: Yahya Hodjat, Michael H. Kutzscher
  • Patent number: 5938552
    Abstract: 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: Grant
    Filed: June 2, 1998
    Date of Patent: August 17, 1999
    Assignee: The Gates Corporation
    Inventor: Alexander Serkh
  • Patent number: 5930872
    Abstract: 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: Grant
    Filed: September 22, 1997
    Date of Patent: August 3, 1999
    Assignee: The Gates Corporation
    Inventors: David McBride, Richard S. Thornwald
  • Patent number: 5918863
    Abstract: 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: Grant
    Filed: November 26, 1997
    Date of Patent: July 6, 1999
    Assignee: The Gates Corporation
    Inventors: Michael L. Crabtree, Richard F. Stieg
  • Patent number: 5823904
    Abstract: 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: Grant
    Filed: November 19, 1996
    Date of Patent: October 20, 1998
    Assignee: The Gates Corporation
    Inventors: Yahya Hodjat, Michael H. Kutzscher
  • Patent number: 5807194
    Abstract: 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: Grant
    Filed: October 31, 1996
    Date of Patent: September 15, 1998
    Assignee: The Gates Corporation
    Inventors: Paul S. Knutson, Walter L. Dodson
  • Patent number: 5752692
    Abstract: 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: Grant
    Filed: January 6, 1997
    Date of Patent: May 19, 1998
    Assignee: The Gates Corporation
    Inventors: Michael L. Crabtree, Richard F. Stieg
  • Patent number: 5721177
    Abstract: 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: Grant
    Filed: June 17, 1994
    Date of Patent: February 24, 1998
    Assignee: Gates Formed-Fibre Products, Inc.
    Inventor: George A. Frank
  • Patent number: 5697890
    Abstract: 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: Grant
    Filed: June 6, 1995
    Date of Patent: December 16, 1997
    Inventors: John J. Kolfenbach, Michael J. Cichon
  • Patent number: 5683773
    Abstract: 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: Grant
    Filed: February 28, 1997
    Date of Patent: November 4, 1997
    Assignee: The Gates Corporation
    Inventor: Dennis Kemper
  • Patent number: 5647400
    Abstract: 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: Grant
    Filed: May 5, 1995
    Date of Patent: July 15, 1997
    Assignee: The Gates Corporation
    Inventors: Bhargav Jani, Fredrick Chipps, Joe Haney
  • Patent number: 5647813
    Abstract: 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: Grant
    Filed: December 18, 1995
    Date of Patent: July 15, 1997
    Assignee: The Gates Corporation
    Inventor: Alexander Serkh
  • Patent number: 5645504
    Abstract: 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: Grant
    Filed: September 29, 1995
    Date of Patent: July 8, 1997
    Assignee: The Gates Corporation
    Inventor: William L. Westhoff
  • Patent number: 5632697
    Abstract: 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: Grant
    Filed: December 18, 1995
    Date of Patent: May 27, 1997
    Assignee: The Gates Corporation
    Inventor: Alexander Serkh
  • Patent number: 5610217
    Abstract: 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: Grant
    Filed: October 30, 1995
    Date of Patent: March 11, 1997
    Assignee: The Gates Corporation
    Inventors: Larry Yarnell, Bobbie E. South
  • Patent number: 5597235
    Abstract: 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: Grant
    Filed: November 15, 1994
    Date of Patent: January 28, 1997
    Assignee: The Gates Corporation
    Inventors: Roger P. Barnes, Jonathan A. Johnston
  • Patent number: 5591094
    Abstract: 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: Grant
    Filed: November 1, 1995
    Date of Patent: January 7, 1997
    Assignee: The Gates Corporation
    Inventors: Ian Farmer, Gregory A. St. Denis