Patents by Inventor Geoffrey G. Tolsdorf

Geoffrey G. Tolsdorf 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).

  • Rack mountable on a trailer hitch ball
    Patent number: 5228607
    Abstract: A carrier rack includes a trailer-hitch ball-engaging mount selectively movable by articulated linkage between a released position and an operative position engagable with a trailer-hitch ball. In the operative position of the ball-engaging mount, an adjustable clamp selectively increases compressive forces of the mount on the ball to a desired loading. The linkage is configured and dimensioned to ensure that it is in a relaxed condition when the ball-engaging mount is in its operative position and subjected to the increased compressive forces applied by the adjustable clamp.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: July 20, 1993
    Assignee: TVP, Inc.
    Inventor: Geoffrey G. Tolsdorf