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:
Jun. 16, 2009
Filed:
Apr. 14, 2005
Applicant:
Wuhua Yang, Ann Arbor, MI (US);
Inventor:
Wuhua Yang, Ann Arbor, MI (US);
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method allowing for the fabrication of tubular structures, such as structural members used in vehicle bodies, from two or more metals or other materials using a hydroforming process. Being able to use two or more metals or other materials, such as, for example, high-strength steel and low-weight aluminum alloy, in body structure design allows for achieving an optimum material solution which combines the desirable attributes of the different materials.