Patents by Inventor Gerd Schwertfirm

Gerd Schwertfirm 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).

  • Chain tensioner for automotive engine
    Patent number: 5658212
    Abstract: A chain tensioner damps high-frequency chain vibrations by a preloaded damping element in the form of a basic piston, which is augmented by an elastomeric damping element.
    Type: Grant
    Filed: November 24, 1995
    Date of Patent: August 19, 1997
    Assignee: Ford Motor Company
    Inventors: Josef Meurer, Hans-Walter Metz, Gottfried Weber, Gerd Schwertfirm