Patents by Inventor Manfred Unruh

Manfred Unruh 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).

  • C-axle gearing
    Patent number: 5048360
    Abstract: A gearing system for a lathe is shiftable from a first position, in which conical gear wheels (16, 25, 26, 36) engage each other with play, to a second position, in which the wheels engage each other without play. Reduced wear is achieved in the first position. High precision is achieved in the second position. Preferably, the system also has parallel-toothed gear wheels (15, 24, 35) which are engaged when the conical gear wheels are disengaged.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: September 17, 1991
    Assignee: Boehringer Werkzeugmaschinen GmbH
    Inventors: Siegfried Kuhn, Werner Muhlich, Robert Rader, Otmar Ritz, Hermann Schulten, Manfred Unruh