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. 28, 1976
Filed:
Apr. 07, 1975
Applicant:
Inventors:
Assignee:
Demag Aktiengesellschaft, Duisburg, D;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ; H05B / ;
U.S. Cl.
CPC ...
75 12 ; 13 12 ;
Abstract
A method is provided for lengthening the life of electric arc furnace linings in the production of steel from scrap, while at the same time introducing sponge iron pellets to shorten the melting time. This is achieved by predetermining the increase in power at the arc-molten bath interface upon introduction of the sponge iron and automatically reducing the power factor in the circuits feeding the electrodes according to the predetermination, upon each introduction of sponge iron.
Quick Actions:
Schubert, Hans-Joachim. (1976). Method for melting scrap in electric arc furnaces (U.S. Patent No. 3999976). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3999976
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile