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:
Aug. 01, 2017
Filed:
Oct. 29, 2013
Applicant:
Federal-mogul Burscheid Gmbh, Burscheid, DE;
Inventors:
Nigel Gray, Bergisch Gladbach, DE;
Stephan Machliner, Leverkusen-Opladen, DE;
Assignee:
Federal-Mogul Burscheid GmbH, Burscheid, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23P 9/02 (2006.01); F16J 9/26 (2006.01); F16J 9/22 (2006.01); F16J 9/20 (2006.01); F16J 9/02 (2006.01); B23P 15/06 (2006.01);
U.S. Cl.
CPC ...
F16J 9/26 (2013.01); B23P 9/02 (2013.01); B23P 15/06 (2013.01); F16J 9/02 (2013.01); F16J 9/20 (2013.01); F16J 9/203 (2013.01); F16J 9/22 (2013.01); Y10T 29/49281 (2015.01);
Abstract
A piston ring () having increased fatigue resistance includes a plastically deformable material. The piston ring () has a running face (), which is delimited at the top by an upper running face edge () and at the bottom by a lower running face edge (). Compressive stresses are introduced into the upper running face edge () and/or into the lower running face edge () along at least one part of the circumference, the compressive stresses having been produced by roller burnishing.