Patents by Inventor Bernd Koziara

Bernd Koziara 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).

  • Patent number: 6826945
    Abstract: A technique for manufacturing a gear rack (5) for a rack-and-pinion steering gear for automobiles makes use of a blank (18) for the gear rack (5) having at least in the latter's toothed area a form deviating from a circular cylinder. Size and form of the cross-section of the blank (18) are selected in a manner that the contour of the finished gear rack (5) in the toothed area (7) does not project beyond the envelope given by the dimensions of neighboring parts of the rack-and-pinion steering gear. The gear rack (5) is formed from the blank (18) by means of tumble-forging. After tumble-forging, the gear rack (5) in its toothed area (7) outside the toothed section has a convex or concave longitudinal profile, which serves to support the tumbling torques during tumble-forging.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: December 7, 2004
    Assignee: ZF Friedrichshafen
    Inventors: Werner Breitweg, Bernd Koziara, Alfred Brenner