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:
Jul. 29, 2014
Filed:
Jun. 09, 2010
Applicants:
Sivio Maria Reali, Milan, IT;
Giancarlo Cavallini, Monza, IT;
Mauro Grioni, Colturano-Milano, IT;
Inventors:
Assignee:
Tenova S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B 7/16 (2006.01); F27B 3/22 (2006.01); F27D 3/18 (2006.01); C21C 5/52 (2006.01);
U.S. Cl.
CPC ...
C21C 5/5217 (2013.01); F27B 3/225 (2013.01); F27D 3/18 (2013.01); F27B 3/22 (2013.01);
Abstract
A movable device for injecting oxygen and other technical materials into an electric arc furnace includes a housing situated above a portion of a step of a crucible and equipped with a cooling coil, an injection lance of oxygen and other technical materials, a supporting and moving system of the lance between minimum and maximum range points of the liquid bath level contained therein, positioned in the housing, an opening situated in the housing and facing the inside of the crucible in which the lance is transferably guided, and a scraping member disposed between the opening and the lance.