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:
May. 25, 2004
Filed:
Jul. 15, 2002
Applicant:
Inventors:
Assignee:
Saint-Gobain Glass France, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
C03B 5/225 ;
U.S. Cl.
CPC ...
C03B 5/225 ;
Abstract
The subject of the invention is a process for melting and refining vitrifiable materials, such that all or part of the thermal energy necessary for melting the said vitrifiable materials is supplied by the combustion of fossil fuel(s) with at least one oxidizer gas, the said fuel(s)/gas or the gaseous products resulting from the combustion being injected below the level of the mass of vitrifiable materials ( ). The refining of the vitrifiable materials after melting comprises at least one step of subjecting them to subatmospheric pressure. The invention also relates to the device for implementing the process and to its applications.