Bellows assembly for crystal ribbon puller

Details Bellows assembly for crystal ribbon puller Bellows assembly for crystal ribbon puller

1981-06-22

1982-11-23

Bernstein, Hiram

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including specific material of construction

156DIG93, C30B 1534

Patent

active

043604994

ABSTRACT:
There is disclosed apparatus for growing a ribbon of crystalline material which apparatus comprises a furnace adapted to contain a melt from which the ribbon is to be grown and crystal pulling means spaced from the furnace and including crystal seed holding means and sliding means moving said crystal seed holding means toward and away from the furnace. Extending between the furnace and the crystal seed pulling means are inner and outer bellows means spaced apart from each other to define a space therebetween. This space may be purged with an inert gas when pulling crystal.

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patent: 3953281 (1976-04-01), Pantusco et al.
patent: 4045181 (1977-08-01), Burd et al.
patent: 4075055 (1978-02-01), Ciszek et al.

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