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. 15, 1977
Filed:
Jan. 14, 1975
Applicant:
Inventors:
Heinrich-Otto Rossner, Essen, DT;
Dietrich Radke, Essen-Margaretenhohe, DT;
Jurgen Hartwig, Essen-Steele, DT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
75 43 ; 75 38 ; 75 46 ;
Abstract
A method for melting sponge iron is provided in which pieces or pellets of sponge iron, which may be partly replaced by scrap, are placed on the surface of a molten metal bath. Oxygen is added to the metal bath at a position below the surface of the bath. Further substances required for the melting process are added to the metal bath under pressure at a position below the surface of the bath. The further substances that are added include solid carbonaceous dust and fine-grained sponge iron.