Patents by Inventor Bertram Johannes

Bertram Johannes 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).

  • Center-free large antifriction bearing with integrated electrical direct drive
    Patent number: 4771199
    Abstract: A center-free large antifriction bearing consisting of two bearing races comprising rolling bearing elements disposed between them and an integrated electrical direct drive in which the rolling bearing elements are disposed on one side of the direct drive, is characterized in that the bearing races (1, 2) engage over each other at the side of the direct drive (7) opposite the rolling bearing elements (3) and have a spacing (20) which is less than the gap (21) between stator (8) and rotor (9) of the electrical direct drive (7), so that contact of stator and rotor is avoided under all operating conditions.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: September 13, 1988
    Assignee: Hoesch Aktiengesellschaft
    Inventor: Bertram Johannes