Patents by Inventor Bernd Hirschmiller

Bernd Hirschmiller 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).

  • Fluid-friction clutch with a compensating chamber for viscous fluid
    Patent number: 4938330
    Abstract: In a fluid-friction clutch with a disc stack actuable by an adjusting piston and having resilient spacer parts, the viscous fluid escapes from the shearing gaps between adjacent discs of the stack into a compensating chamber located radially on the outside in relation to the disc stack, in order to ensure a completely torque-free lifting position of the clutch when the adjusting piston is not actuated.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: July 3, 1990
    Assignee: Daimler-Benz AG
    Inventors: Henning Wallentowitz, Karl-Heinz Buchle, Bernd Hirschmiller