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:
Jan. 16, 1990
Filed:
Oct. 24, 1988
Applicant:
Inventors:
Charles W Finkl, Chicago, IL (US);
Bruce Liimatainen, Chicago, IL (US);
Herbert S Philbrick, Jr, Wilmette, IL (US);
Assignee:
A. Finkl & Sons Co., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; C21C / ;
U.S. Cl.
CPC ...
75 1039 ; 266207 ;
Abstract
This invention relates to a method and apparatus for treating molten metal to lower the oxygen, hydrogen, and, to some extent, the nitrogen content thereof in a manner which is less capital intensive, easier to operate and simpler in construction and operation than the vacuum arc degassing system.