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. 27, 2022
Filed:
Oct. 17, 2018
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27B 3/08 (2006.01); F27B 3/22 (2006.01); F27D 11/10 (2006.01); F27D 27/00 (2010.01); C21B 11/10 (2006.01); F27B 3/18 (2006.01); F27D 3/00 (2006.01);
U.S. Cl.
CPC ...
F27B 3/085 (2013.01); C21B 11/10 (2013.01); F27B 3/22 (2013.01); F27D 11/10 (2013.01); F27D 27/00 (2013.01); F27B 3/18 (2013.01); F27D 3/0033 (2013.01);
Abstract
This electric furnace includes one or more upper electrodes, one or more bottom-blowing tuyeres, a mechanical stirrer equipped with an impeller, and a charging device which injects an iron oxide-containing iron raw material.