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:
Nov. 03, 2015
Filed:
Jul. 31, 2008
Michael D. Hanna, West Bloomfield, MI (US);
Richard M. Kleber, Clarkston, MI (US);
Mohan Sundar, Troy, MI (US);
Thomas C. Zebehazy, Rochester, MI (US);
Michael D. Hanna, West Bloomfield, MI (US);
Richard M. Kleber, Clarkston, MI (US);
Mohan Sundar, Troy, MI (US);
Thomas C. Zebehazy, Rochester, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A multi-piece sound dampened brake rotor comprises a relatively light weight hub with a hub flange and a heavier rotor body with a sound damping insert and a rotor body flange. The hub and rotor body are attached at their flanges. The flanges may be mechanically attached such as with bolts. Or the hub and rotor may be attached by casting the hub of a lower melting metal alloy against the rotor body and rotor body flange. The rotor body may have vanes for air cooling and a sound damping insert may be incased in either or both body portions sandwiching the vanes.