Patents by Inventor Jacob J. Unrau

Jacob J. Unrau 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).

  • Tire changer
    Patent number: 4947918
    Abstract: A pneumatic tire changer has a base that engages one side of a wheel. Two bead deflecting tools engage either under or over a bead depending on whether a tire is to be removed or installed. The tools are then rotated in opposite directions on the base to force the bead over the rim. The changer is a portable, manually operated tool.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: August 14, 1990
    Inventor: Jacob J. Unrau