Patents by Inventor Gene A. Ellerbrock

Gene A. Ellerbrock 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).

  • Method for forming a flange on a tube
    Patent number: 5622071
    Abstract: The present invention is a method for forming a flange on a tube. The method of the present invention includes the steps of: (a) placing a tube having a tube axis extending longitudinally therethrough on a support device for supporting the tube, the tube having an edge defining an opening, the support device having a predetermined flange shape surface adjacent the edge; (b) positioning a tip having a tip axis extending longitudinally therethrough adjacent the edge, the tip having a substantially hyperbolioidal shape, the tip axis being at a predetermined angle with respect to the tube axis, the tip rotating along the tube and tip axes; (c) inserting the rotating tip in the opening of the tube; and (d) engaging the edge with the tip to cause the edge to contact the predetermined flange shape surface to form a flange on the tube.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: April 22, 1997
    Assignee: Aeroquip Corporation
    Inventors: Philip C. Van Riper, Gene A. Ellerbrock