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:
Apr. 04, 2017
Filed:
Mar. 19, 2008
Pierre Jeanvoine, Saint-Germain En Laye, FR;
Stephane Maugendre, Precy S/Oise, FR;
Pierre Jeanvoine, Saint-Germain En Laye, FR;
Stephane Maugendre, Precy S/Oise, FR;
SAINT-GOBAIN GLASS FRANCE, Courbevoie, FR;
SAINT-GOBAIN ISOVER, Courbevoie, FR;
Abstract
The invention relates to a process and to an installation for preparing a final glass, comprising a main furnace with electrodes and/or overhead burners, which is fed with main batch materials generating a main molten glass, and a submerged-combustion auxiliary furnace, said auxiliary furnace being fed with auxiliary batch materials, the auxiliary molten glass feeding the main furnace toward its upstream end in the first third of its length, the auxiliary glass being substantially of the same composition as the main glass. The downstream zone of the main furnace is thus used to remove both gases coming from the main glass and gases coming from the auxiliary glass, in order to finish melting the batch stones and impurities contained in the auxiliary glass and to homogenize the two glass streams from their redox standpoint, when this is necessary.