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:
Mar. 27, 1984
Filed:
Feb. 16, 1983
Applicant:
Inventors:
Francois Schleimer, Esch-sur-Alzette, LU;
Romain Henrion, Esch-sur-Alzette, LU;
Ferdinand Goedert, Esch-sur-Alzette, LU;
Fernand Thill, Esch-sur-Alzette, LU;
Assignee:
Arbed S.A., Luxembourg, LU;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 52 ; 75 59 ; 75 60 ;
Abstract
Pig iron is refined by top blowing with oxygen and injecting inert gas from the bottom. The slag formation is minimized by controlled addition of lime to match the formation of slag components as they are generated by the process. This increases the capacity of the melt to receive a cold charge, e.g. of scrap.