The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2013
Filed:
Jun. 12, 2007
Applicants:
Tilmann Haug, Weissenhorn, DE;
Wolfgang Rehm, Ulm, DE;
Karl Weisskopf, Rudersberg, DE;
Inventors:
Assignee:
Daimler AG, Stuttgart, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01); F01P 1/04 (2006.01); C22C 38/18 (2006.01); C22C 38/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part () provided with a combustion cavity () and an annular wall (), and a piston lower part () provided with a connecting rod bearing (). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method.