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:
Oct. 25, 2011
Filed:
Oct. 09, 2008
Bengt Rydholm, Västerås, SE;
Erik Svensson, Västerås, SE;
Alf Lundström, Västerås, SE;
Helmut Hackl, Västerås, SE;
Olof Sjödén, Nyköping, SE;
Jan-erik Eriksson, Västerås, SE;
Tord Kroon, Västerås, SE;
Tord Lindblad, Västerås, SE;
Bengt Rydholm, Västerås, SE;
Erik Svensson, Västerås, SE;
Alf Lundström, Västerås, SE;
Helmut Hackl, Västerås, SE;
Olof Sjödén, Nyköping, SE;
Jan-Erik Eriksson, Västerås, SE;
Tord Kroon, Västerås, SE;
Tord Lindblad, Västerås, SE;
ABB AB, Västerås, SE;
Abstract
A furnace plant including at least one furnace vessel comprising side walls, a bottom and a roof. At least one heater is configured to heat metal in the furnace vessel. A compartment includes sidewalls lined with refractory material. The compartment forms an extension of the furnace vessel. At least one electromagnetic stirrer is arranged outside and adjacent to the compartment. A refractory plate is arranged inside the compartment. The refractory plate includes an upper edge configured to be positioned below a meniscus of molten metal and includes a lower edge positioned spaced apart from a bottom of the compartment. The plate is arranged such that a gap between the plate and a wall of the compartment increases toward the bottom of the compartment.