Patents by Inventor Franz T. Stone

Franz T. Stone 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).

  • Clevis type connection device
    Patent number: 4275556
    Abstract: A clevis type connection device has one leg thereof formed with a "blind" bore opening and another leg thereof formed with a through-bore opening, which is arranged in axial alignment with the "blind" bore opening; the bore openings thereof being sized to rotatably support opposite ends of a load engaging pin. The load pin is either removably retained or permanently installed within the bore openings.
    Type: Grant
    Filed: May 25, 1979
    Date of Patent: June 30, 1981
    Assignee: Columbus McKinnon Corporation
    Inventors: Franz T. Stone, Kenneth D. Schreyer