Patents by Inventor Dennis Lee Keesey

Dennis Lee Keesey 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).

  • Formed one-piece hollow roller shaft
    Patent number: 4006943
    Abstract: An article in the form of a one-piece, hollow, elongated body having an enlarged center portion and narrowed or necked down end portions is provided. The hollow roller shaft having an internal, centrally disposed lubricant cavity within a central body and a pair of shaft journals extending therefrom.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: February 8, 1977
    Assignee: Caterpillar Tractor Co.
    Inventors: Lawrence W. Gibble, Dennis Lee Keesey