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:
Apr. 05, 2005
Filed:
Apr. 08, 2004
Mary Ellen Armitage, Kalamazo, MI (US);
Jeffrey N. Heaton, White Lake, MI (US);
David P. Schankin, Harper Woods, MI (US);
Donald J. Kurecka, Rochester Hills, MI (US);
Mary Ellen Armitage, Kalamazo, MI (US);
Jeffrey N. Heaton, White Lake, MI (US);
David P. Schankin, Harper Woods, MI (US);
Donald J. Kurecka, Rochester Hills, MI (US);
American Axle & Manufacturing, Inc., Detroit, MI (US);
Abstract
A shaft structure and at least two non-identical inserts. The shaft structure has a cavity and vibrates in response to the receipt of an input of a predetermined frequency such that at least two second bending mode anti-nodes are generated in spaced relation to one another along the longitudinal axis of the shaft structure. Each of the inserts is disposed within the longitudinally extending cavity at a position that approximately corresponds to an associated one of the anti-nodes. A method for attenuating noise transmission from a vehicle driveline is also disclosed.