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:
Nov. 20, 1990
Filed:
Mar. 09, 1989
Romain Henrion, Esch-Alzette, LU;
Henri Klein, Niederkorn, LU;
Francois Knaff, Niederkorn, LU;
Robert Mousel, Dudelange, LU;
Michel Decker, Soleuvre, LU;
Carlo Heintz, Luxembourg, LU;
Carlo Lux, Erpeldange, LU;
Patrick Derungs, Garnich, LU;
Henri Hoerold, Bettembourg, LU;
Andre Bock, Luxembourg, LU;
Arbed S.A., , LU;
Abstract
Nozzles for a refining lance are presented which are spaced upwardly from the head of the lance and supply post-combustion oxygen to the space above a molten metal bath undergoing refining. Each of the nozzles has a mouthpiece with two parallel sharp edges which are arranged in planes passing substantially through the axis of the lance and which are connected by slightly rounded edges. Above the mouthpiece of each nozzle is a converging part.