Patents by Inventor Peter Koethe

Peter Koethe 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: 4864838
    Abstract: To avoid impacts on the first pass of the rolled product through a universal rolling mill the vertical rolls of the rolling mill can be provided with their own integral drive according to our invention. In an electrical drive for a vertical roll the vertical roll is the rotor of an electric motor while the stator is a circular collar on a nonrotatable supporting axle for the vertical roll. In a hydraulic drive for a vertical roll a hydraulic motor is either located in a housing side extension of the structural member supporting the vertical roll to drive it from the outside by spur wheel gearing or by a frictional drive or the hydraulic motor is mounted in the nonrotating supporting axle of the vertical roll and engages on an inner cogged drive ring on the vertical roll from the inside by spur gearing positioned on a transverse plane.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: September 12, 1989
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Georg Engel, Hans-Heinrich Hartmann, Peter Koethe, Alexandr Svagr, Bernd Onderka