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. 26, 1984
Filed:
May. 03, 1983
Paul Metz, Luxembourg, LU;
Corneille Melan, Luxembourg, LU;
Arbed S.A., Luxembourg, LU;
Abstract
Molten steel, carried in a transport ladle from a converter to a casting stage, is treated in a heating chamber which has two tubes depending from its bottom into the ladle to a depth sufficient to penetrate a slag layer and an intermediate layer atop the melt. The ladle is surrounded by a pressure vessel whose rim sealingly engages an outlying annular flange of the chamber bottom and into which high-pressure gas is admitted to drive part of the melt into the heating chamber. Each of these two tubes is initially closed at its lower end by a fusible sheet-metal cap which prevents the entry of slag into the heating chamber but melts upon immersion into the hot metal bath. Treatment gas may be introduced into the chamber via one of these tubes.