Patents by Inventor Ralf Pohlers

Ralf Pohlers 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).

  • Wiping device with variable contact force for windows of motor vehicles
    Patent number: 5390391
    Abstract: A device is proposed, which serves for wiping windows of motor vehicles. The wiping device comprises a wiping blade which is moved in an oscillating manner over the window, is applied to the latter with a contact force and the wiping element of which tips into a drag position on each change of direction. A quick and quiet turning of the wiping element from its one into its other operating position is achieved when the contact force is smaller in the region of the two oscillation reversal positions than in the wiping field section lying between these regions.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: February 21, 1995
    Assignee: Robert Bosch GmbH
    Inventors: Joachim Zimmer, Ralf Pohlers, Andreas Geis, Jan Dietrich