Patents by Inventor Devon D. Lease

Devon D. Lease 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).

  • Patent number: 5120390
    Abstract: A tire carcass building drum is provided adjacent its ends with a shoe movable axially thereto which comprises a main shoe and a secondary shoe rotatably mounted by bearings on the main shoe. The secondary shoe is provided with turn-up bladders thereon, which bladders function to turn over extended ply ends around bead assemblies placed on other components of a tire carcass being assembly on the drum. The secondary shoe further includes a toe surface engageable with the ends of the drum to thereby render the bladder members rotatable with the drum surface. These bladders also provide a support for ply ends against which the consolidating and stitching rollers can act to smooth and press together the ply materials.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: June 9, 1992
    Assignee: Copper Tire & Rubber Company
    Inventors: Karl W. Klose, Devon D. Lease
  • Patent number: 5118269
    Abstract: The present invention provides a clamp assembly for use in combination with a vulcanization press for curing tires wherein the press includes a frame for supporting upper and lower platens carrying upper and lower cooperating mold halves. The platens are movable toward and away from each other such that the mold halves may be moved toward a closed mating position and an open tire receiving position. The clamp assemblies of the present invention hold the mold halves onto their respective platens and include an elongated clamp body which is mounted to the press frame adjacent to a platen and a sliding wedge member which is guided for movement toward and away from the platen along the clamp body. The mold halves are each provided with a wedge-shaped clamp ring and pneumatic cylinders are provided for moving the sliding wedge member forward to engage the clamp rings and thereby hold the mold halves in place on the platens.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: June 2, 1992
    Assignee: Cooper Tire & Rubber Company
    Inventors: Karl W. Klose, Devon D. Lease