Patents by Inventor Frank Tenhumberg

Frank Tenhumberg 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).

  • Constant velocity universal ball joints with window surfaces and ball surfaces having a desired roughness
    Patent number: 5725432
    Abstract: A constant velocity universal ball joint (1) has an outer part (2), an inner part (6) received therein, and a cage (11) arranged between the outer part (2) and inner part (3) to guide balls (17) which serves to transmit torque between the outer part (2) and inner part (6). The balls (17) are guided between parallel window faces (15, 16) of the cage (11). To improve the service life values and the running-in conditions of the joint, balls (17) are used whose surface is ground and have a defined roughness. Thus, in the case of tolerance errors, the window faces (15, 16) are worked off to such an extent as to achieve identical load bearing conditions at the balls.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: March 10, 1998
    Assignee: GKN Automotive AG
    Inventors: Herbert Konegen, Peter Seigert, Hans Schreiber, Frank Tenhumberg