Patents by Inventor Hans-Dieter Zentgraf

Hans-Dieter Zentgraf 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).

  • Deforming vehicle door
    Patent number: 5348365
    Abstract: A vehicle door is designed to collapse in the longitudinal direction of the vehicle in such a way that in the case of a maximum longitudinal force slightly below that of the most serious accident, longitudinal deformation occurs and the axial supporting force of the vehicle door simultaneously remains as high as possible. To produce this longitudinal deformability, crimps running parallel in the vertical direction are provided in the structural members of the door and in a door well reinforcement.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: September 20, 1994
    Assignee: General Motors Corporation
    Inventors: Willi Elsenheimer, Hans-Dieter Zentgraf