Glass manufacturing – Control responsive to condition sensing means – Temperature or heater control
Patent
1978-06-05
1980-05-06
Kellogg, Arthur D.
Glass manufacturing
Control responsive to condition sensing means
Temperature or heater control
65 29, 65104, C03B 2904
Patent
active
042015634
ABSTRACT:
An apparatus and method for tempering glass is described. Glass sheets are passed through a tempering furnace along a predetermined generally horizontal path. The temperature of the sheets is measured by a pivoting pyrometer above the sheets and the furnace is regulated to achieve a zero temperature profile across the plates.
REFERENCES:
patent: 3257188 (1966-06-01), Morgan et al.
patent: 3479172 (1969-11-01), McCown et al.
patent: 3744985 (1973-07-01), Peternel
patent: 3819347 (1974-06-01), Callies et al.
patent: 3849099 (1974-11-01), Maltey, Jr. et al.
patent: 4043780 (1977-08-01), Bricker et al.
Kellogg Arthur D.
Leipold Paul A.
PPG Industries Inc.
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