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:
Aug. 21, 1979
Filed:
Mar. 09, 1978
Applicant:
Inventor:
James J Bowden, Warren, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
266 44 ;
Abstract
My invention is particularly adapted for use in steel-making furnaces which have a charge-receiving vessel comprising a bottom and side walls for containing the molten steel and slag, such as the open hearth and electric furnaces. Lime is a major constituent of steel-making slags but it has a tendency to build up on the furnace bottom after successive steel-making operations. I have discovered that by adding a mineral, such as alumina or the like to the built-up lime and applying heat, the lime and alumina will chemically combine to form another mineral having a melting point low enough so that it may be liquified for drainage from the furnace.