Patents by Inventor James H. Stonhaus

James H. Stonhaus 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: 4254927
    Abstract: A plate for providing a jacking pad for trailer and camper jacks is disclosed which includes a square plate. Plate reinforcing flanges integral with the square plate are provided to distribute loading and prevent plate breakage from occurring. These same plate reinforcing flanges are routed so as to provide capture points for preventing sliding of three common types of trailer jacks; these jacks including a square base jack, a pivot point jack and a trailer third wheel. Serendipitiously, routing of the jack capturing flangeways is provided so as to resist lines of breakage that might otherwise occur.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: March 10, 1981
    Inventor: James H. Stonhaus