Patents by Inventor Philip Wellman

Philip Wellman 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).

  • Patent number: 5810544
    Abstract: The present invention relates to a trailer having a load-bearing platform moveable between a ground-level loading position and a horizontal travel position supported on a U-shaped support frame, and having its wheels mounted on stub axles rather than a common axle. The stub axles are cantilevered on the support frame with suspension arms to keep the wheels in proper alignment with the support frame. The load-bearing platform is raised and lowered by a pivoting lever member, hinged at its rear end to the rear end of the platform, together with a block and tackle system which controls the lever member and raises and lowers the front end of the load platform.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: September 22, 1998
    Inventor: Philip Wellman