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. 22, 1992
Filed:
Feb. 19, 1991
Applicant:
Inventors:
Frederic Weber, Compiegne, FR;
Claude Didelot, Thourotte, FR;
Assignee:
Saint-Gobain Vitrage International, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65273 ; 65162 ; 65350 ;
Abstract
A curving furnace has at least one curving station, of which the walls are equipped with resistors. The series of upper resistors are subdivided into one or more axial zones in which the resistors are oriented parallel to the height of the glass sheets, and into one or more transverse zones in which the resistors are oriented perpendicularly. The heating power of a given zone is regulated independently of the heating powers associated with the other zones.