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. 12, 2017
Filed:
Nov. 12, 2014
GM Global Technology Operations Llc, Detroit, MI (US);
Michael D. Hanna, West Bloomfield, MI (US);
Michael L. Holly, St. Clair Shores, MI (US);
Ronnie T. Brown, Bloomfield Hills, MI (US);
James A. Webster, Shelby Township, MI (US);
Lisa G. Devoe, Ortonville, MI (US);
Donna Y. Sekulovski, Novi, MI (US);
Kee Hyuk Im, Rochester Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A ferritically nitrocarburized rotational member of a vehicle brake is disclosed, including a rotational member having a friction surface configured for braking engagement with a corresponding friction material. A compound zone is disposed at the friction surface. An exposed surface of the compound zone is exposed to an atmosphere. The area of the exposed surface includes from about 0 percent to about 14 percent graphite.