Patents by Inventor Richard O. Dungan

Richard O. Dungan 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).

  • Material handling trailer system
    Patent number: 6135540
    Abstract: A multiple use trailer system for hauling conventional and long loads. The front and rear end gates are closed for normal loads and open to accommodate long loads such as rebar and lengths of pipe. The rear gate has an aerodynamic air wing that holds it in the open position. A dumping mechanism has a platform which is tiltable to dump the trailer and in one embodiment is mounted on a fulcrum which both pivots and moves laterally to maintain a constant dump line.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: October 24, 2000
    Inventor: Richard O. Dungan
  • Material handling trailer system
    Patent number: 6027297
    Abstract: A multiple use trailer system for hauling conventional and long loads. The front and rear end gates are closed for normal loads and open to accommodate long loads such as re-bar and lengths of pipe. The rear gate has an aerodynamic air wing that holds it in the open position. A dumping mechanism has a platform which is tiltable to dump the trailer and in one embodiment is mounted on a fulcrum which both pivots and moves laterally to maintain a constant dump line.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: February 22, 2000
    Inventor: Richard O. Dungan