Patents by Inventor David Brethorst

David Brethorst 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).

  • Floor mounted walking beam system for advancing a vehicle
    Patent number: 5042392
    Abstract: A system for intermittently advancing floor-supported vehicles through a food product processing system employs beam members mounted adjacent the floor which are reciprocably movable back and forth, preferably in response to extension and retraction of the rod of a cylinder. Engagement members, preferably in the form of upstanding trip dogs provided on the beams, engage the underside of the vehicles for drawing the vehicles through the cabinets of the processing system. A system is provided for transferring the vehicles from one walking beam assembly to another.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: August 27, 1991
    Assignee: DEC International, Inc.
    Inventor: David Brethorst