Patents by Inventor Gerd Springe

Gerd Springe 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).

  • Process for manufacturing hollow bodies
    Patent number: 5868023
    Abstract: Hollow bodies such as construction elements for vehicle manufacture can be produced by forming a preform in the form of a longitudinal body or sheets of aluminum or its alloys by means of a high internal pressure process or by superplastic forming in a tool. In this process the preform is heat treated locally before forming, on places of high elongation during the forming process and/or the tool for the forming process is equipped with local surface characteristics of different friction such as roughness patterns or with smoothed surfaces.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: February 9, 1999
    Assignee: Alusuisse Technology & Management Ltd.
    Inventors: Frank Wehner, Gerd Springe