Method and apparatus for exhausting optical fiber preform tubes
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United States of America Patent
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Jul 14, 1981
Grant Date -
N/A
app pub date -
Mar 3, 1980
filing date -
Mar 3, 1980
priority date (Note) -
Expired
status (Latency Note)
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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).
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