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. 13, 1978
Filed:
May. 13, 1977
Applicant:
Inventors:
Per Harald Collin, Falun, SW;
Bjorn Widell, Vasteras, SW;
Assignee:
Stora Kopparbergs Bergslags AB, Falun, SW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 11 ; 75 38 ;
Abstract
The invention relates to a method of combined production of electrical energy and crude iron and provides a further improvement over a method described in U.S. Pat. No. 3,985,544, issued Oct. 12, 1976; particularly, this method finds application when particulates of .ltoreq. 1 mm in size are being used in practicing the further improved and described process.