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:
Sep. 25, 2012
Filed:
Jun. 12, 2008
Steffen Hoppe, Overath, DE;
Manfred Fischer, Leichlingen, DE;
Christiane Bauer, Burscheid, DE;
Ralf Lammers, Wermelskirchen, DE;
Steffen Hoppe, Overath, DE;
Manfred Fischer, Leichlingen, DE;
Christiane Bauer, Burscheid, DE;
Ralf Lammers, Wermelskirchen, DE;
Federal-Mogul Burscheid GmbH, Burscheid, DE;
Abstract
Disclosed is a piston ring comprising a supporting material and a wear-resistant coating. The wear-resistant coating is composed of a ternary system A-B—N which is applied using a PVD process and in which A and B each represent an element form the group encompassing Ti, Zr, Hf, V, Nb, Ta, Cr, Mo W, Al, Si and C, wherein A≠B and N represents nitrogen. The thickness of the wear-resistant coating amounts to ≧3 μm.