Tempering glass sheets

Details Tempering glass sheets Tempering glass sheets

1975-10-28

1977-01-25

Kellogg, Arthur D.

Glass manufacturing

Processes

Glass preform treating

65104, 65348, C03B 2700

Patent

active

040049019

ABSTRACT:
A multiple stage process for tempering a glass sheet in which a glass sheet, heated to the vicinity of its softening point, is cooled sufficiently rapidly to impart a temper in multiple stages of cooling without marring its softened surfaces to an extent sufficient to impart annoying optical properties.

REFERENCES:
patent: 2093040 (1937-09-01), Eckert
patent: 3881907 (1975-05-01), Starr

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