Patents by Inventor Wolfgang Friedrick

Wolfgang Friedrick 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).

  • Premounted tensioning device
    Patent number: 5015216
    Abstract: In a pre-mounted tensioning device the fastening bolt is covered by the idler wheel. The fastening bolt is serviced through a recess provided in the wheel surface. A pre-mounted unit is created through the insertion of a fastening bolt whose head is pushed by spring elements against the wheel surface, thus preventing the idler wheel from turning and forcing the recess to coincide with the fastening bolt.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: May 14, 1991
    Assignee: SKF GmbH
    Inventors: Manfred Brandenstein, Wolfgang Friedrick, Roland Haas, Gerhard Herrmann