Fabrication of lightguide soot preforms

Details Fabrication of lightguide soot preforms Fabrication of lightguide soot preforms

1988-06-03

1990-04-10

Schor, Kenneth M.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 312, 65 182, 427163, 427166, C03B 37018

Patent

active

049157167

ABSTRACT:
A glass soot deposition torch (30; FIG. 2) having gas passages arranged to provide an inner (34) and outer (36) flame front is disclosed in which the temperature of the inner front is higher than the outer front. A passage is located within the outer front (36) through which glass soot (32) is directed onto the surface of a growing soot-form core (38).

REFERENCES:
patent: 3966446 (1976-06-01), Miller
patent: 4165223 (1979-08-01), Powers
patent: 4192656 (1980-03-01), Worrell
patent: 4263032 (1981-04-01), Sinclair
patent: 4298365 (1981-11-01), Bailey et al.
patent: 4314837 (1982-02-01), Blankenship
patent: 4344670 (1982-08-01), Blankenship
patent: 4345928 (1982-08-01), Kawachi et al.
patent: 4367085 (1983-01-01), Suto et al.
patent: 4453961 (1984-06-01), Berkey
patent: 4465708 (1984-08-01), Fanucci et al.
patent: 4618354 (1986-10-01), Suda
"High-Rate Fabrication of Wholly Synthesized Fiber Preforms by the Multi-Flame VAD Method With SiHCl.sub.3 Raw Materials", by Suda et al. in the IOOC-ECOC '85 Proceedings.
"Double-Flame VAD Process for High-Rate Optical Preform Fabrication", by H. Suda et al., Electronics Letters, 1/3/85, vol. 21, No. 1, pp. 29-30.

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