Patents by Inventor Stegfried Mielke

Stegfried Mielke 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
    Patent number: 5119777
    Abstract: In a pressure-diecast light alloy piston, a ring carrier made of a metallic material having pores filled by the piston materials is embedded in the piston casting adjacent to the first ring groove. In order to provide a strong joint to the piston base body, the ring carrier consists of cold-compacted chips of austenitic cast iron and there is a metallic bond between the chips and the piston material.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: June 9, 1992
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Stegfried Mielke, Wolfgang Henning