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:
Nov. 08, 1994
Filed:
May. 28, 1993
Applicant:
Inventor:
Markus K Ranki, Espoo, FI;
Assignee:
Outokumpu Engineering Contractors Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
266182 ; 75707 ;
Abstract
The present invention relates to a method and apparatus for feeding reaction gases, advantageously oxygen and air or a mixture thereof, into a smelting furnace so that the cross-sectional area wherethrough the reaction gases are fed can be adjusted. Thus the velocity of the gases when they are discharged into the smelting furnace can be maintained sufficiently high while the quantity and quality of the gas varies.