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:
Aug. 02, 2005
Filed:
Jun. 27, 2003
David M. Cumming, Royal Oak, MI (US);
Gianfranco Gabbianelli, Troy, MI (US);
Jeffery J. Mellis, Bloomfield Hills, MI (US);
Hiroshi Uchiyama, Chiba, JP;
David M. Cumming, Royal Oak, MI (US);
Gianfranco Gabbianelli, Troy, MI (US);
Jeffery J. Mellis, Bloomfield Hills, MI (US);
Hiroshi Uchiyama, Chiba, JP;
Magna International Inc., Troy, MI (US);
Abstract
A bumper beam includes a first portion of a first material and a second portion of a second material. The first material has different material properties than the second material. For example, the first material may have a generally higher tensile or yield strength than the second material. In one embodiment, the first material comprises martensitic steel, while the second material comprises a dual-phase, multiphase, complex-phase or TRIP steel. In addition, the first material may have a different thickness than the second material. The bumper beam provides an improved strength to weight ratio than conventional bumper beams. This abstract is provided to comply with the rules requiring an abstract that allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of the claims. 37 CFR 1.72(b).