Patents by Inventor Ulf H. Heule

Ulf H. Heule 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).

  • Deburring tool for deburring the edges of boreholes
    Patent number: 5803679
    Abstract: A deburring tool for deburring the edges of boreholes. The tool has a base body in which at least one recess aligned across the longitudinal axis of the base body is provided, where at least one blade is arranged in said recess so it can be displaced under spring load in the longitudinal direction of the recess. A compression spring is provided in the longitudinal bore of the base body and comes in contact with one end of a control pin whose other end engages in a control recess in the blade to provide at least a holding power to the blade in the direction of displacement.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: September 8, 1998
    Inventor: Ulf H. Heule