Patents by Inventor Sigfried Hausdoerfer

Sigfried Hausdoerfer 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).

  • Rolling machine and method thereof
    Patent number: 7406853
    Abstract: In the transverse wedge rolling machine as claimed in the invention the drive motor is a permanent magnet motor, especially a torque motor. Furthermore the rotational speed of the rollers is controlled depending on their rotary position.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: August 5, 2008
    Assignee: Langenstein and Schemann GmbH
    Inventors: Guenter Hofmann, Stelios Katsibardis, Sigfried Hausdoerfer, Henry Zwilling, Guenther Vogler, Herbert Rueger