Patents by Inventor Andreas Ballmann

Andreas Ballmann 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).

  • Illuminated serrated wheel
    Patent number: 6092902
    Abstract: The present invention relates to a control knurl for the rotary adjustment of a potentiometer in an automotive vehicle which minimizes light loss of the light guide in a control knurl. The light guide of the control knurl reflects the light from inside onto the peripheral surface of the control knurl. A bright protective coating encompasses the light guide and reflects the beams of light which emit from the boundary surface of the light guide. Light loss is also avoided by not applying protective coating on mirror surfaces which redirect the light.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: July 25, 2000
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Adam Weber, Andreas Ballmann