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:
Feb. 28, 1995
Filed:
Apr. 23, 1993
Anthony J Cesaroni, Unionville, CA;
Clarence W Fulton, Oakville, CA;
Alcan International Limited, Montreal, CA;
Abstract
A method of forming a non-planar article such as an automotive heat shield from a preform comprising planar sheets superposed upon one another and bonded to one another at selected locations using a roll bond process. The preform is positioned between a male tool and a female tool, the male tool having a protuberant portion and the female tool defining a cavity adapted to accomodate the protuberant portion of the male tool. The preform is then deformed by pushing the protuberant portion against the preform and pressurized fluid is thereafter introduced between the sheets to space them from one another on the unbonded portions.