Patents by Inventor Jürgen Liebler

Jürgen Liebler 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).

  • Actuating installation for pneumatic clutch actuation with overload protection and/or incorrect-operation protection
    Patent number: 6234290
    Abstract: An actuating installation for a friction clutch arranged in the drive line between a drive unit and a transmission. The installation having an actuating arrangement for the actuation of the friction clutch and a clutch-pedal arrangement, which is connected to the actuating arrangement and has a clutch pedal, which, in a first operating state, is actuable according to a force-travel characteristic of a first type. The actuating installation has a signaling and/or protection device, which is in operative connection with or is operatively integrated in the clutch-pedal arrangement, so that, after the response of the signaling and/or protection device to a second operating state, the clutch pedal can be actuated only according to a force/travel characteristic of a second type, which differs significantly from the force/travel characteristic of the first type in order thus to indicate the second operating state.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: May 22, 2001
    Assignee: Mannesmann Sachs AG
    Inventors: Hans-Jürgen Drexl, Barbara Ester, Frank Hirschmann, Jürgen Liebler, Joachim Lindner, Thomas Otto, Jörg Pankoke, Winfried Stürmer