Patents by Inventor Douglas C. Corbett

Douglas C. Corbett 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: 6626304
    Abstract: An apparatus and method for stacking elongate trailer frames in a generally up-ended position. The apparatus includes an elongate base adapted to rest substantially freely on the ground in a first location, a plurality of supports extending upwardly from the base and an elongate framework mounted atop the supports. Trailer frame support arms are mounted on the framework for supporting a plurality of trailer frames in up-ended orientation. The entire apparatus is portable, such that it may be used in a first location for storing up-ended trailer frames, the trailer frames may be removed therefrom, and the entire apparatus lifted and moved to a second location where it may be needed for convenient storage of elongate trailer frames.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: September 30, 2003
    Assignee: Chassis Systems, Inc.
    Inventors: Nelson H. Corbett, Douglas C. Corbett
  • Patent number: 6241438
    Abstract: A support for assisting in stacking multiple trailer chassis one atop the other. Each chassis has an elongate frame and wheels supporting its rear end. A support, or supports, support the wheels of an overlying trailer chassis above and out of engagement with the ground-engaging wheels of the lowermost chassis in the stack to permit rolling movement of the stack.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: June 5, 2001
    Assignee: Chassis Systems, Inc.
    Inventors: Nelson H. Corbett, Douglas C. Corbett