Patents by Inventor Margret Gruhn

Margret Gruhn 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).

  • DRIVE DEVICE FOR A MOTOR VEHICLE DOOR, IN PARTICULAR A SLIDING DOOR
    Publication number: 20090019773
    Abstract: The object of the invention is a drive system for a motor vehicle door (1), in particular a sliding door (1). This comprises a drive motor (4) and a connected drive means (6, 7, 8, 9) for moving the motor vehicle door (1) along an opening/closing path (R). According to the invention, a gear (5) or generally a torque converter is provided between the drive motor (4) and the drive means (6, 7, 8, 9), said gear or torque converter acting with different torques on the drive means (6, 7, 8, 9) depending on a respective load and/or signal.
    Type: Application
    Filed: June 16, 2005
    Publication date: January 22, 2009
    Applicant: Kiekert Aktiengesellschaft
    Inventors: Klaus Gruhn, Margret Gruhn, Holger Schiffer