Patents by Inventor William R. Straker

William R. Straker 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).

  • Guard rail system for loading flat bed trucks
    Patent number: 5826861
    Abstract: An exemplary moveable guard rail system of the present invention, useful for preventing fork lift trucks from falling off flat bed trailers, comprises at least two guard rails connected sequentially to each other and to hinged supportive frame members. The guard rails can be moved between extended and retracted positions by hinged arm members which may be powered by hydraulic pistons. Preferably, gimbal bearing members are used for connecting the guard rail or rails to the hinged supportive frame members.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: October 27, 1998
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Donald S. Indge, William R. Straker