Patents by Inventor Bobby J. Parr

Bobby J. Parr 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: 4864704
    Abstract: A rubber-covered roll has a cylindrical roll core and a cylindrical sheath of rubber molded about and covering the roll core to provide a rubber-covered roll core. The roll also has a pair of metallic end cap cores and a pair of rubber jackets each molded about one of the end cap cores to partially enclose the same and provide a pair of rubber-jacketed end caps. The rubber-jacketed end caps are attached to opposite ends of the rubber-covered roll core to provide the rubber-covered roll. Each end cap core is annular-shaped and has an inner corner beveled at an approximate forty-five degree angle to define a continuous inner corner surface thereon.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: September 12, 1989
    Assignee: Day International Corporation
    Inventors: Patrick M. Hogan, Bobby J. Parr, Manuel B. Hooper