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:
Mar. 08, 2016
Filed:
Feb. 08, 2013
Applicant:
Mahle International Gmbh, Stuttgart, DE;
Inventors:
Wolfgang Issler, Schwaikheim, DE;
Daniel Lopez, Stuttgart, DE;
Jose Valentim Lima Sarabanda, Morumbi, BR;
Assignee:
MAHLE International GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01); F16J 9/12 (2006.01); F16J 9/14 (2006.01); F02B 3/06 (2006.01); F02F 3/22 (2006.01);
U.S. Cl.
CPC ...
F16J 9/12 (2013.01); F16J 9/14 (2013.01); F02B 3/06 (2013.01); F02F 3/00 (2013.01); F02F 3/22 (2013.01); F05C 2201/021 (2013.01); F05C 2201/0448 (2013.01);
Abstract
The invention relates to a piston ring () for pistons of internal combustion engines, having a ring running surface (), a ring back (), an upper ring flank (), a lower ring flank (), and two ring joint ends spaced apart by a gap (). According to the invention, at least one opening () is provided in the ring running surface (), which opening forms a fluid connection between the ring running surface () and the ring back () or a ring flank ().