Glass manufacturing – Means shaping preform from granular material with fusion means
Patent
1990-09-17
1992-01-21
Lindsay, Robert L.
Glass manufacturing
Means shaping preform from granular material with fusion means
65302, 65361, 164301, 425425, 425434, 425DIG201, C03B 1906
Patent
active
050824848
ABSTRACT:
An apparatus for making a quartz glass crucible comprises a housing having a first chamber and a second chamber therein, a rotation crucible having an inner surface corresponding in configuration to the quartz glass crucible, means for rotating the rotation crucible, means for shifting the rotation crucible and the rotating means together between the first and second chambers, means placed in the first chamber for feeding a grain material into the rotation crucible, means placed in the first chamber for shaping the grain material in the rotation crucible so as to form a shaped body in the shape of the quartz glass crucible when the rotation crucible rotates, and means placed in the second chamber for heating and fusing the shaped body within the rotation crucible so as to make the quartz glass crucible.
REFERENCES:
patent: 1190145 (1916-07-01), Gift
patent: 3841859 (1974-10-01), Becker et al.
patent: 3935046 (1990-06-01), Uchikawa et al.
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patent: 4416680 (1983-11-01), Bruning et al.
patent: 4528163 (1985-07-01), Albrecht
patent: 4759787 (1988-07-01), Winterburn
patent: 4874417 (1989-10-01), Winterburn
Hirata Kohichi
Itoh Haruhiko
Koseki Akihiko
Koseki Tadao
Lindsay Robert L.
Toshiba Ceramics Co. Ltd.
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