Torch for fabricating optical fiber preform

Details Torch for fabricating optical fiber preform Torch for fabricating optical fiber preform

1987-02-10

1989-03-07

Jones, Larry

Combustion

Mixer and flame holder

431349, 431351, F23D 1462

Patent

active

048101893

ABSTRACT:
A torch for fabricating an optical fiber perform which has a plurality of raw gas injection passages at the center of the torch, a plurality of small-diameter combustion supporting gas injection passages independent of each other and disposed to surround the raw gas injection passages on the outer periphery of the raw gas injection passages disposed at the center of the torch, and an annular combustible gas injection passage disposed around the small-diameter combustion supporting gas injection passages. Thus, the torch can stably manufacture porous glass preforms.

REFERENCES:
patent: 2858729 (1958-11-01), Keyes
patent: 3032096 (1962-05-01), Stout
patent: 3265114 (1966-08-01), Childree
patent: 3729285 (1973-04-01), Schwedersky
patent: 3773459 (1973-11-01), Akhmedou et al.
patent: 4610625 (1986-09-01), Bunn

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