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:
Aug. 30, 1988
Filed:
Jun. 17, 1983
Francois Schleimer, Esch/Alzette, LU;
Jean Goedert, Esch/Alzette, LU;
Ferdinand Goedert, Esch/Alzette, LU;
Romain Henrion, Esch/Alzette, LU;
Fernand Thill, Kockelscheuer, LU;
Henri Klein, Niedercorn, LU;
Jean-Francois Liesch, Luxembourg, LU;
Arbed S.A., Luxembourg, LU;
Abstract
An apparatus and method is presented for emptying metallurgical vessels, and in particular steelmaking converters containing metal and slag, whereby the slag is effectively separated from the metal during pouring. The apparatus includes at least on permeable refractory element located near the flow hole. An agitating gas is fed through the refractory element thereby creating a bubbling froth which effectively obstructs most of the slag from being carried along by the vortex which forms above the vertical flow hole.