Patents by Inventor Friedhelm Stahlschmidt

Friedhelm Stahlschmidt 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).

  • Piston blank for a forged piston
    Patent number: 4910093
    Abstract: A forged piston blank for a forged piston of an internal combustion engine is formed with undercuts between the eye portions and crown side or head portions of the ears so that a larger piston pin may be accommodated by virtue of the fact that the wall thickness at the upper portion of the eye is greater than the wall thickness of the head portion of the ear.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: March 20, 1990
    Assignee: Berchem & Schaberg GmbH
    Inventors: Rutger Berchem, Volkhard Schnitzler, Friedhelm Stahlschmidt