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:
Oct. 11, 1983
Filed:
Dec. 23, 1980
Applicant:
Inventors:
William D Vernam, New Kensington, PA (US);
Ralph W Rogers, Jr, New Kensington, PA (US);
Harry C Stumpf, New Kensington, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F / ; C22C / ;
U.S. Cl.
CPC ...
148-2 ; 148 / ; 148 / ; 148415 ; 148416 ; 148437 ; 148438 ;
Abstract
A wrought aluminum alloy sheet product suitable for forming into heat exchanger fins is disclosed. The sheet product contains essentially 2 to 13 wt. % Si, 4 max, wt. % Zn, 0.005 to 0.5 wt. % Sr, up to 1 wt. % each of Fe and Cu, the balance essentially aluminum and incidental impurities. The sheet product is characterized by a substantially uniform distribution of relatively fine generally equiaxed constituents comprised mainly of elemental silicon.