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:
Dec. 29, 1998
Filed:
Dec. 16, 1996
Eric Duchateau, Clarendon Hills, IL (US);
Louis Philippe, Oakbrook Terrace, IL (US);
Dominique Jouvaud, Paris, FR;
Robert Plessier, Marseilles, FR;
Claude Pivard, Paris, FR;
Etienne Lepoutre, St-Germain-en-Laye, FR;
Jean-Thierry Duboudin, Vincennes, FR;
Abstract
Method of heating the charge of a glass furnace in which at least one burner is placed in a wall of a furnace so as to heat the bath of glass, characterized in that at least one assembly consisting of a first and a second burner which are fed with fuel gas and with oxidizer gas containing at least 50 vol. % of oxygen is arranged in one of the walls of the furnace at a distance (D) at least equal to approximately 3 meters from each other, in that an oxygen lance is arranged between the first and second burners, the first burner, the second burner and the lance forming a combustion assembly and in that from approximately 30 vol. % to approximately 80 vol. % of oxidizer gas is sent into the lance and from approximately 20 vol. % to approximately 70 vol. % of oxidizer gas is sent to the first and second burners in substantially equal proportions, so as to create a retarded combustion of the fuel and oxidizer gases and to extend substantially the length of the flame compared with the length of the flame obtained with no oxidizer gas injected into the lance.