Patents by Inventor Martin E. Kumner

Martin E. Kumner 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).

  • Torsion spring assembly for an automatically adjusting friction torque device
    Patent number: 5595275
    Abstract: A compact torsion spring assembly is functionally disposed between a first member and a second member. The first member is rotatable relative to the second member and has a first spring engagement notch therein. A bracket fixed relative to the second member has a second notch therein. A tension spring is formed as a continuous coil of steel wire, defining an enlarged diameter first catch plate portion at a first end and a second catch plate portion at a second end. The spring is disposed between the first member and the second member, with the first catch plate portion engaging the notch in the first member and the second catch plate portion engaging the notch in the bracket, wherein the spring rotatively biases the first member relative to the the second member.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 21, 1997
    Assignee: Dana Corporation
    Inventors: Daniel V. Gochenour, Barry T. Adams, Martin E. Kumner, Christopher M. Davis, Steven D. Lepard, Michael L. Bassett, Kevin F. Schlosser