Patents by Inventor Eugene W. Petersen

Eugene W. Petersen 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).

  • Attachment device for electrical discharge machine
    Patent number: 5041709
    Abstract: The invention relates to the area of machine tools and more particularly relates to an attachment device for detachably mounting an electrode on an electrical discharge machine including a detachable head assembly incorporating an electric drive motor means for selectively rotating the electrode about its longitudinal axis relative to the workpiece.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: August 20, 1991
    Inventors: James R. Schneider, Don Duncan, Eugene W. Petersen, John R. Benadum