Patents by Inventor René FEUERSTEIN

René FEUERSTEIN 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: 11077875
    Abstract: A rack for a steering gear includes a toothed portion with a toothing extending along a longitudinal axis, and a generally cylinder-segment-shaped back opposite the toothing and having a back radius. A method for producing such a rack includes forming a cylindrical blank with an unmachined radius between a toothed die part having a toothed mold clearance and a back die part having a back mold clearance in a die cavity. The die may have a generally cylinder-segment-shape. In an open position of the die, the blank may be inserted between the toothed mold clearance and the back mold clearance. The toothed die part and the back die part in a forging stroke for closing the cavity may then be moved in a closing direction to a closed position. The back radius of the back mold clearance may be larger than the unmachined radius of the blank.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: August 3, 2021
    Assignees: THYSSENKRUPP PRESTA AG, thyssenkrupp AG
    Inventors: Reinhard Bader, Markus Mages, Ralf Eckstein, Juergen Dohmann, René Feuerstein
  • Publication number: 20190232998
    Abstract: A rack for a steering gear may include a toothed portion that has a toothing extending along a longitudinal axis, and a generally cylinder-segment-shaped back opposite the toothing and having a back radius. A method for producing such a rack may involve forming a cylindrical blank with an unmachined radius between a toothed die part having a toothed mold clearance and a back die part having a back mold clearance in a die cavity. The die may have a generally cylinder-segment-shape. In an open position of the die, the blank may be inserted between the toothed mold clearance and the back mold clearance. The toothed die part and the back die part in a forging stroke for closing the cavity may then be moved in a closing direction to a closed position. The back radius of the back mold clearance may be larger than the unmachined radius of the blank.
    Type: Application
    Filed: July 4, 2017
    Publication date: August 1, 2019
    Applicants: ThyssenKrupp Presta AG, thyssenkrupp AG
    Inventors: Reinhard BADER, Markus MAGES, Ralf ECKSTEIN, Juergen DOHMANN, René FEUERSTEIN