Patents by Inventor Walter W. Skirvin

Walter W. Skirvin 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).

  • Log bunk structures
    Patent number: 4268051
    Abstract: The specification discloses a roller insert which can be welded into a crossframe of a log trailer to provide low friction to a pivoted log bunk. Each insert includes a frame welded into a cutout portion in an end portion of the crossframe. Rollers are mounted on axles removably secured in the frame by keeper bars.
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: May 19, 1981
    Assignee: Enoch Skirvin & Sons, Inc.
    Inventors: Paul G. Skirvin, Walter W. Skirvin, Carl L. Skirvin