Apparatus for cooling an optical fiber
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United States of America Patent
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Oct 30, 1990
Grant Date -
N/A
app pub date -
Apr 14, 1989
filing date -
Sep 8, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of and an apparatus for cooling an optical fibre drawn from a heated glass blank by passing the fibre (3) through a cooling pipe (9) in which a cooling gas (A) flows in the axial direction of the fibre around it. In order to reduce the consumption of cooling gas, the cooling gas is caused to flow turbulently (B) around the fibre by a throttle point (20) formed by a partition wall (19) in the cooling pipe, so that a laminar flow of cooling gas around the fibre is prevented and the transfer of heat between the cooling gas and the fibre is improved.
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