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:
Dec. 30, 1980
Filed:
Jul. 11, 1979
Applicant:
Inventor:
Alfred Freissmuth, Trostberg, DE;
Assignee:
SKW Trostberg Aktiengesellschaft, Trostberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 51 ; 75 52 ; 75 53 ; 75 58 ; 75 60 ;
Abstract
A method for treatment of iron melts by blowing in oxygen or an oxygen containing gas with calcium carbide on top or into the iron melt. Using the process, the amount of iron scrap added to the melt can be increased, foaming is avoided and the temperature of the melt can be controlled.