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:
Mar. 11, 2014
Filed:
Aug. 18, 2005
Jian LU, Ballwin, MO (US);
George Robert Schmidt, St. Louis, MO (US);
Jian Lu, Ballwin, MO (US);
George Robert Schmidt, St. Louis, MO (US);
Federal-Mogul Worldwide, Inc., Southfield, MI (US);
Abstract
A ventilated brake rotor () includes vent holes () between inboard () and outboard () friction plates. The vent holes () are separated by ribs () spaced in regular circumferential increments about the rotor (). The rib pattern () is divided into two or more sectors () of equal angular measure. Within each sector (), an attenuation region () interrupts two or more ribs () by replacing the ribs () with a cluster of individual pins () which may be arranged in radial and circumferential rows. Each attenuation region () spans a territory within each sector () that is preferably at least 20% and less than 55% of the sector () real estate. The rotor () completely or at least substantially eliminates vibration modes in objectionable, audible frequencies without adversely affecting the structural integrity, cooling capabilities or functional attributes of the disc brake assembly ().