Device for manufacturing a preform for optical fibres...

Glass manufacturing – Fiber making apparatus – Having coating or treating means

Reexamination Certificate

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C065S530000, C065S531000

Reexamination Certificate

active

07415844

ABSTRACT:
A device for manufacturing a preform of glass material for optical fibres. A chemical deposition chamber, at least one burner mobile along a direction Z and adapted to deposit a chemical substance on at least an elongated element positioned along an axis Z-Z, at least one suction element mobile along the direction Z for collecting exhaust chemical substances, a collector tube associated with the at least one suction element and adapted to discharge the exhaust chemical substances outside the chemical deposition chamber through an exhaust opening formed on a wall of the chamber, and a coupling device between the collector tube and the wall at the exhaust opening, allowing sliding of the collector along the direction Z and along a direction X towards/away from the axis z-z.

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Shigeru; “Production Device for Glass Preform”, Patent Abstracts of Japan, of JP 09 002830, Jan. 7, 1997.
Yukio; “Synthesizing Method of Porous Preform for Optical Fiber and Device Therefor”, Patent Abstracts of Japan, of JP 07 198966, Aug. 1, 1995.
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