Patents by Inventor Thomas Artzberger

Thomas Artzberger 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: 3997932
    Abstract: A dockboard having an improved lip lifting mechanism. The dockboard includes a ramp hinged at its rear edge to a loading dock, and the ramp is adapted to be moved from a generally horizontal cross traffic position to an upwardly inclined position by a counterbalancing spring assembly. A lip is hinged to the front edge of the ramp and can be pivoted from a pendant, downwardly hanging, position to a partially extended position just short of its fully extended position by a lip lifting mechanism which is actuated as a consequence of the ramp moving downwardly from the inclined position toward the cross traffic position.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: December 21, 1976
    Assignee: Kelley Company, Inc.
    Inventor: Thomas Artzberger