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:
May. 19, 2009
Filed:
Jun. 21, 2007
Applicants:
Peter Kemnitz, Leutenbach, DE;
Alexander Grössle, Ittlingen, DE;
Inventors:
Peter Kemnitz, Leutenbach, DE;
Alexander Grössle, Ittlingen, DE;
Assignee:
MAHLE International GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piston for an internal combustion engine, comprising a piston head having a piston crown, a circumferential top land, and a circumferential ring belt having ring grooves. At least one ring groove is provided with a ring insert. A circumferential depression is provided in the top land, above the ring belt.