Patents by Inventor Sonja Riehardt

Sonja Riehardt 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).

  • Mechanism housing
    Patent number: 6431026
    Abstract: A casing for a drive unit, particularly a drive unit for a wiper apparatus, consists of plastic reinforced with glass fiber. The drive unit casing is open at one side and is sealed there by means of a metallic cover, where the cover serves at the same time as an axial support for the support axes of the drive unit. The use of plastic reinforced with glass fiber gives the casing a sufficient strength, and additionally has the advantage that the drive unit casing is significantly lighter than corresponding casings which are constructed in metal.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: August 13, 2002
    Assignee: ITT Manfacturing Enterprises, Inc.
    Inventors: Bernd Walther, Christof Heuberger, Martin Csermak, Hans-Peter Rieger, Sonja Riehardt