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:
May. 25, 1976
Filed:
Apr. 16, 1975
Applicant:
Inventors:
Helge O Forberg, Owensboro, KY (US);
Henry E Chia, Carrollton, GA (US);
Paul S Keith, Atlanta, GA (US);
Assignees:
Southwire Company, Carrollton, GA (US);
National Steel Corporation, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 6 / ; 75 9 / ;
Abstract
The process for degassing aluminum and aluminum alloys comprising treating the molten metal with a gaseous mixture consisting essentially of fluorine, hydrofluoric acid, carbon monoxide and carbon dioxide. Fluorine, hydrofluoric acid, carbon monoxide and carbon dioxide are produced during the electrolytic reduction of alumina to form aluminum, therefore, the gaseous mixture resulting from this electrolytic reduction may be used to degas aluminum and aluminum alloys.