Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1982-02-23
1983-11-29
Fisher, Richard V.
Glass manufacturing
Processes
Forming product or preform from molten glass
427 39, 427 451, 427163, 427237, C03B 1900, C03B 37025
Patent
active
044179111
ABSTRACT:
In the manufacture of a glass optical fibre preform by forming a coating of oxide material on the interior surface of a substrate tube, in particular a coating of silica and one or more dopant oxides on a vitreous silica tube, by causing a reaction to take place between oxygen and the vapor or vapors of one or more compounds such as halides, the reactant vapors are introduced into a perforated tube supported coaxially within the heated substrate tube and pass through the perforations into the annular space between the perforated and substrate tubes, while oxygen, and optionally an additional carrier gas, is passed either into the perforated tube or directly into said space. The coating-forming reaction is caused to take place in said space by generating energy in the space, in the form of a plasma, or a laser beam, and/or heat, and/or gas combustion, whereby the coating is formed simultaneously on the whole heated length of the substrate tube.
REFERENCES:
patent: 3957474 (1976-05-01), Kobayashi et al.
patent: 4117802 (1978-10-01), Le Sergent et al.
patent: 4125389 (1978-11-01), King
patent: 4233045 (1980-11-01), Sarkar
patent: 4253863 (1981-03-01), Iyengar
patent: 4310340 (1982-01-01), Sarkar
Cundy Steven L.
Evans Ronald A.
Johnson Oliver S.
McCormack John S.
Nichols Bruce A.
Associated Electrical Industries Limited
Fisher Richard V.
LandOfFree
Manufacture of optical fibre preforms does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manufacture of optical fibre preforms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of optical fibre preforms will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-606267