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:
Jan. 17, 1984
Filed:
Dec. 15, 1982
Josef Fegerl, Linz, AT;
Walter Lugscheider, Linz, AT;
Voest-Alpine Aktiengesellschaft, Linz, AT;
Abstract
In an arrangement for the production of steel from solid and/or liquid charging materials, such as pig iron, heavy scrap and light scrap, a liftable and lowerable heating-refining arrangement and, if desired an arrangement for supplying further additions are positioned in a refactorily lined refining vessel. In order to be able to use as high a scrap portion of the materials charged as possible without substantially increasing the time required until the end of the refining operation per charge, the heating-refining arrangement consists of a plasma burner, a jacket surrounding the plasma burner for supplying oxygen, and a cooling jacket surrounding that jacket, a counter-electrode being arranged in the bottom of the refining vessel.