Patents by Inventor Bernard Sich

Bernard Sich 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).

  • Stepless friction drive
    Patent number: 6908409
    Abstract: The invention relates to a stepless friction drive (1) in which friction wheels (2) are mounted. Said friction drive is provided with a system that allows a compensatory displacement of the corresponding friction wheel (2) when the input and output wheels are elastically deformed. Said system is mounted between the lower end of every support (1) and the hydraulic piston (6). The compensation system comprises an upper bearing shell (3), a lower bearing shell (5) and balls (4) that are maintained in a defined arrangement by means of a cage (9).
    Type: Grant
    Filed: July 7, 2001
    Date of Patent: June 21, 2005
    Assignee: ZF Friedrichshafen AG
    Inventors: Bernard Sich, Axel Matheis