Apparatus for curving glass sheets

Details Apparatus for curving glass sheets Apparatus for curving glass sheets

1991-02-19

1992-12-22

Woodard, Joye L.

Glass manufacturing

Glassworking or preform by or with reheating means

Planar sheet preform

65162, 65350, C03B 23023

Patent

active

051731029

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.

REFERENCES:
patent: 2794300 (1957-06-01), Golightly
patent: 2967378 (1961-01-01), Jones et al.
patent: 3001328 (1961-09-01), Berseth
patent: 4601743 (1986-07-01), Canfield
patent: 4824464 (1989-04-01), Perin et al.
patent: 4952227 (1990-08-01), Herrington et al.
patent: 4979977 (1990-12-01), Frank et al.

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