Optical fiber drawing furnace with gas flow tubes

Details Optical fiber drawing furnace with gas flow tubes Optical fiber drawing furnace with gas flow tubes

2009-02-03

2010-11-02

Hoffmann, John (Department: 1791)

Glass manufacturing

Fiber making apparatus

With means for cooling newly formed fiber, filament, or...

C065S537000, C065S538000, C118S718000

Reexamination Certificate

active

07823419

ABSTRACT:
A furnace for drawing an optical fiber includes a body having an upper and lower openings for supplying a preform and discharging a drawn optical fiber, a heating unit installed in the body for receiving and melting the preform, an atmosphere blocking tube installed to the lower opening for discharging the drawn optical fiber and blocking the optical fiber from the atmosphere, an upper introduction port formed at an upper portion of the body for introducing an inert gas toward the preform and partially discharged outside through a gap between the preform and the upper opening, a central and lower introduction ports formed at central and lower portions for introducing an inert gas into the body, a first flow guiding means for guiding the inert gas introduced through the central introduction port upward and then flowed down along a surface of the preform, and a second flow guiding means for guiding the inert gas introduced through the lower introduction port upward and then discharged outside through the atmosphere blocking tube along a surface of the drawn optical fiber.

REFERENCES:
patent: 4096823 (1978-06-01), Schladitz
patent: 4437870 (1984-03-01), Miller
patent: 4673427 (1987-06-01), Van Der Giessen et al.
patent: 6029476 (2000-02-01), Bourhis et al.
patent: 6257023 (2001-07-01), Uhm et al.
patent: 2007/0113589 (2007-05-01), Paganessi
patent: 59-217641 (1984-12-01), None
patent: 5-279070 (1993-10-01), None

Affiliated with

Also associated with

Rating

Optical fiber drawing furnace with gas flow tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical fiber drawing furnace with gas flow tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber drawing furnace with gas flow tubes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4240047