Patents by Inventor Werner H. Bregler

Werner H. Bregler 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 for internal combustion engines with forged sections made of steel
    Patent number: 5136992
    Abstract: In an internal combustion engine, a piston has forged sections made of steel, especially in the piston head area, as well as at the hubs, and areas made of light metal, especially in the area of the piston skirt. The previously used quenched and drawn steel 42CrMo4V is to be replaced with a steel that has comparable properties but is more cost effective to manufacture. This replacement steel is a precipitation hardened ferrite-perlite steel.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: August 11, 1992
    Assignee: Mahle GmbH
    Inventors: Werner H. Bregler, Dieter Muller-Schwelling