Patents by Inventor Ernst Deubelbeiss

Ernst Deubelbeiss 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).

  • Light alloy piston for diesel engines
    Patent number: 4138984
    Abstract: A light alloy piston for diesel engines includes a piston head coated with a hard annodized layer having a combustion chamber recess and/or a fuel-guiding channel provided adjacent to the edge of the combustion chamber recess and/or valve pockets. The piston head is free of a hard anodized layer in those regions which are highly stressed by gas and mass forces. Preferably those regions of the piston head adjacent to edge portions of the combustion chamber recess lying in the direction of the piston pin are free of a hard anodized layer.
    Type: Grant
    Filed: February 13, 1976
    Date of Patent: February 13, 1979
    Assignee: Karl Schmidt GmbH
    Inventors: Werner Steidle, Wilfried Sander, Ernst Deubelbeiss