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. 15, 2012
Filed:
Sep. 30, 2009
Brian C. Coleman, Shelby Township, MI (US);
Christopher J. Mielke, Shelby Township, MI (US);
George E. Doerr, Clarkson, MI (US);
Brian C. Coleman, Shelby Township, MI (US);
Christopher J. Mielke, Shelby Township, MI (US);
George E. Doerr, Clarkson, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A bi-directional over-speed energizing brake system which implements automatically in the event an electric power steering system is in an over-speed condition. For rotational speeds of a rotating component exceeding a predetermined rotational speed threshold, centrifugal force acting on brake arms of a braking assembly overcome biasing by springs such that the brake arms will frictionally engage a non-rotating brake ring to thereby slow the rotational speed of the rotating component.