Patents by Inventor Warren E. Esterberg

Warren E. Esterberg 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).

  • Load handling apparatus
    Patent number: 4427334
    Abstract: A load handling and transporting vehicle is provided with a load handling apparatus movable from a compact low profile position to an extended position. The load handling apparatus has a main lift beam pivotally connected to a link and control beam. A second link connects the control beam to the frame. Piston and cylinder assemblies connected to the main lift beam and frame operate to move the main lift beam, links, and control beam from adjacent nested positions to extended positions. A cargo container carrier is mounted on a third link pivotally connected to the forward ends of the main lift beam and control beams.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: January 24, 1984
    Assignee: RayGo, Inc.
    Inventors: Fernand Copie, Warren E. Esterberg, Quentin K. Fadness, Howard A. Stewart, Robert J. Ringwelski