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. 17, 1976
Filed:
Jul. 15, 1974
Applicant:
Inventors:
Philip R Sperry, North Haven, CT (US);
William C Setzer, Creve Coeur, MO (US);
Assignee:
Swiss Aluminium Limited, Chippis, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22F / ;
U.S. Cl.
CPC ...
75143 ; 75141 ; 75142 ; 75146 ; 75147 ; 75148 ; 148-2 ; 148 / ; 148 32 ;
Abstract
A wrought article possessing a fine recrystallized grain size which is prepared from an aluminum base alloy comprising, in weight percent, up to .6% silicon, up to .7% iron, up 1.5% manganese and 0.03 - 0.20% vanadium. The alloy may be cast by the DC casting method and does not require a homogenizing treatment. The alloy may be hot and cold worked, and retains its fine grain through annealing without requiring a high rate of heating to annealing temperature.