Patents by Inventor Billy R. Walker

Billy R. Walker 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).

  • Cold forming dies and cold forming process
    Patent number: 4945749
    Abstract: Progressive step and compound dies are employed in a cold working process to form a metallic preform of selected mass into a precision-finished, pore-free, annular bushing with a mass substantially equal to that of the preform for use as a battery terminal which allows the fracture free spin over connection of the stem of the bushing to a battery cover and the close fit of the bushing on the battery post when the cover is fitted to the battery casing.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: August 7, 1990
    Assignee: General Motors Corporation
    Inventors: Billy R. Walker, George B. Emmons, Robert E. Dean