Patents by Inventor Thorsten Sterna

Thorsten Sterna 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).

  • Method and device for production of a hollow section
    Patent number: 7343678
    Abstract: The invention concerns a method and apparatus for production of a hollow section (1) in which a coiled pre-shape of the hollow section (1) is deep drawn from a sheet part, which is pre-bent after a trimming process and coiled into the final shape of hollow section (1). The edges (45) of hollow section (1) lying in the peripheral direction are then joined together in the contact region. In order to improve the joining capability of hollow section (1) to other components in simple fashion, it is proposed that before the coiling process at least one flat site (35) for joining to another component be embossed before the coiling process in a pre-bent region of the hollow section (1).
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: March 18, 2008
    Assignee: Daimler AG
    Inventors: Wilfried Bien, Michael Halves, Thomas Hülsberg, Uwe Klüssmann, Bernhard Müller, Holger Nuhn, Ralf Pünjer, Olav Reinhardt, Dirk Riewert, Alfred Riggers, Thorsten Sterna