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.

Date of Patent:
May. 06, 1986

Filed:

Jul. 26, 1984
Applicant:
Inventors:

Walter D Finnegan, Walnut Creek, CA (US);

Ralph A Woods, Pleasanton, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 / ; 148 / ; 148437 ; 148440 ; 428654 ; 22826317 ;
Abstract

A novel process for producing aluminum composite sheet products for roll forming and vacuum brazing is disclosed, which provides an unexpected improvement in the corrosion resistance of the brazed product. According to the process, a composite sheet is annealed to a strain-free state after having been rolled to a thickness which is a critical amount greater than the thickness ultimately sought. Following the annealing step, the sheet is cold worked to the desired thickness, the degree of reduction in this final step being within a critical range which provides the improvement in corrosion resistance to the final product after vacuum brazing.


Find Patent Forward Citations

Finnegan, Walter. (1986). Corrosion resistant vacuum brazing sheet (U.S. Patent No. 4586964). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4586964

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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