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. 06, 2025
Filed:
Sep. 10, 2021
Applicant:
Federal-mogul Burscheid Gmbh, Burscheid, DE;
Inventors:
Assignee:
FEDERAL-MOGUL BURSCHEID GMBH, Burscheid, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/26 (2005.12);
U.S. Cl.
CPC ...
F16J 9/26 (2012.12);
Abstract
A sliding element, in particular a piston ring, comprises a coating having the following layers from the inside to the outside: an adhesive layer, a carbon-containing functional layer and an outer amorphous DLC layer. The layer thickness of the carbon-containing function layer is at least 70%, preferably at least 80%, of the total layer thickness of the coating, and the Young's modulus ratio of carbon-containing functional layer to outer amorphous DLC layer is 1.2 or more.