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:
May. 21, 1985
Filed:
Dec. 20, 1983
Applicant:
Inventors:
Assignees:
SKW Trostberg Aktiengesellschaft, Trostberg, DE;
Voest-Alpine Aktiengesellschaft, Linz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 11 ; 75 1 / ; 75 12 ;
Abstract
In a method of carrying out metallurgical or chemical processes in a shaft furnace having an upper cover, electric energy is supplied by a plasma burner penetrating the upper cover. A plasma torch is formed between the plasma burner and a counter-electrode penetrating the bottom of the shaft furnace. Charging stock is introduced concentrically about the plasma torch and forms a protective wall at the inner wall of the furnace. There is also provided an arrangement for carrying out this method.