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:
Apr. 24, 2018
Filed:
Mar. 18, 2015
Applicant:
Federal-mogul Friedberg Gmbh, Friedberg, DE;
Inventor:
Markus Mahl, Dasing/Taiting, DE;
Assignee:
Federal-Mogul Friedberg, Friedberg, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/20 (2006.01);
U.S. Cl.
CPC ...
F16J 9/20 (2013.01);
Abstract
A piston ring for an internal combustion engine or for a compressor, in particular a piston ring includes an exterior running surface (), two flanks (), and an interior circumferential surface (); the running surface () has a profiled section with a groove (), the groove () being located between an upper portion (') of the running surface and a lower portion (″) of the running surface in relation to the cross-section of the piston ring ().