Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With measuring – controlling – sensing – programming – timing,...
Patent
1997-01-15
1998-05-05
Hoffmann, John
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
With measuring, controlling, sensing, programming, timing,...
65388, 65404, 6537412, 65 325, 65 2915, 65DIG16, 65424, C03B 3700, C03B 302
Patent
active
057468010
ABSTRACT:
A process for producing fluoride glass, including the steps of: introducing a raw material for fluoride glass into a heating vessel; and heating the raw material in the heating vessel, while causing the heating vessel to have a negative internal pressure and introducing an inert gas into the heating vessel, thereby to melt the raw material under heating.
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Fukuda Chie
Kanamori Hiroo
Onishi Masashi
Hoffmann John
Sumitomo Electric Industries Ltd.
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