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:
Jun. 03, 1997
Filed:
Feb. 16, 1995
Applicant:
Inventor:
Peter Cowx, Oslo, NO;
Assignee:
Elkem A/S, , NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
75 1042 ; 75 105 ; 420 29 ;
Abstract
The process feeds a mixture of scrap metal, quartzite, carbonaceous material and wood chips to a submerged arc furnace to make a base iron suitable for iron foundry purposes. The mixture contains 1 to 20% quartzite, 5 to 15% carbonaceous material, 0 to 10% wood chips, all based on the weight of scrap in the mixture. By maintaining the charge in the furnace, good efficiencies are obtained.