Patents by Inventor Thorsten Hildebrand

Thorsten Hildebrand 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).

  • Forced ventilation system for motor vehicles
    Patent number: 6132308
    Abstract: A method is disclosed for making a forced ventilation apparatus (1) for equalizing a pressure difference between a passenger compartment and surroundings of a motor vehicle. The apparatus (1) includes a frame (2) made of hard plastics and delimiting an aperture (3), and a flat ventilation flap (7) made of an elastomer material and secured to the frame (2). A resilient restoring force counteracts opening movement of the ventilation flap (7) from a closed position in which the ventilation flap (7) rests on the frame (2) and closes the aperture (3) in the frame. The method comprises the step of injection-molding the ventilation flap (7) to the frame (2) in an opened position. To this end, the elastomer material is pressed from a free end of the ventilation flap (7) into a common contact area (8) of the ventilation flap (7) with the frame (2).
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: October 17, 2000
    Assignee: Wegu-und Kunststoffwerke GmbH & Co. KG
    Inventors: Michael Dietz, Thorsten Hildebrand, Joachim Heidel