Patents by Inventor Bjorn S. J. Fredeus

Bjorn S. J. Fredeus 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).

  • Gear wheel shaft assembly
    Patent number: 4721009
    Abstract: A gear wheel shaft assembly in which the gear wheel (4) is pressed against an end plane (8) of a shaft (1) by a central bolt (5) through the gear wheel. The end plane is situated at a smaller radius than a shaft bearing (2). The cooperating surfaces (8,9) may be sand blasted.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: January 26, 1988
    Assignee: Atlas Copco Aktiebolag
    Inventors: Axel G. Berle, Bjorn S. J. Fredeus