Patents by Inventor Denver K. Pointer

Denver K. Pointer 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).

  • Steel torsional element and method for making
    Patent number: 4173501
    Abstract: A steel torsional element includes a first or shaft portion for transmitting torque and a second portion, such as a gear, for transferring torque to another machine element. The entire torsional element is carburized and quenched to a first depth to provide wear-resistance and resistance to surface compressive fatigue in the second portion for the transferring of torque to another machine element. The quenching operation also provides a strong but ductile core for both portions of the steel torsional element. The shaft portion is then induction hardened to a second and greater depth to increase the torsional strength thereof.
    Type: Grant
    Filed: June 1, 1978
    Date of Patent: November 6, 1979
    Assignee: Clark Equipment Company
    Inventors: Jack A. Hildebrandt, Denver K. Pointer, Herschel H. Stilley