Patents by Inventor Donald M. Berk

Donald M. Berk 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).

  • Driverless vehicle conveyor system
    Patent number: 4389941
    Abstract: In a driverless vehicle conveyor system wherein a driverless vehicle rides on tracks, two straight sections of the tracks have adjacent ends spaced by a gap. A transfer vehicle is provided in the gap for supporting and transferring driverless vehicles across the gap. The transfer vehicles are mounted for oscillation about an upright axis from a receiving position adjacent one end of the gap to a discharge position adjacent the other end of the gap.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: June 28, 1983
    Assignee: SI Handling Systems Inc.
    Inventors: Donald M. Berk, Charles E. Jacoby, Larry Reagan