Method and apparatus for exhausting optical fiber preform tubes

Details Method and apparatus for exhausting optical fiber preform tubes Method and apparatus for exhausting optical fiber preform tubes

1980-03-03

1981-07-14

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 3A, 65 11W, 65 13, 65144, C03C 2502, C03B 3700

Patent

active

042784590

ABSTRACT:
Methods and apparatuses are disclosed for exhausting reaction products from an optical fiber preform tube and for choking off the preform tube during collapse wherein an exhaust tube (40) is provided with an entry end (41) located adjacent and in fluid communication with a downstream end (10') of a preform tube (10), suction applied to the exhaust tube (40), and a stream of reaction product agitating gas free of reaction products introduced into the exhaust tube (40) at a location adjacent the exhaust tube entry end (41).

REFERENCES:
patent: 4009014 (1977-02-01), Black et al.
patent: 4117802 (1978-10-01), Sergent
patent: 4154591 (1979-05-01), French et al.
patent: 4165224 (1979-08-01), Irven et al.
patent: 4233045 (1980-11-01), Sarkar

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