Patents by Inventor Helmar Bier

Helmar Bier 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).

  • Clutch operating apparatus
    Patent number: 5588517
    Abstract: An apparatus which is used to operate a clutch in the power train between the prime mover and the transmission of a motor vehicle has a bearing which can be moved axially against the prongs of the clutch spring to change the state of the clutch between an engaged and a disengaged condition. In addition to being movable in response to the depression of a clutch pedal, the bearing is also movable by a compensating unit forming part of the clutch operating apparatus and serving to compensate for wear upon the friction linings of the clutch disc and, if necessary, upon the pressure plate and the counterpressure plate of the clutch.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: December 31, 1996
    Assignee: LuK Lamellen und Kupplungsbau GmbH
    Inventors: Ad Kooy, Helmar Bier, Norbert Mebus