Method of drawing optical filaments

Details Method of drawing optical filaments Method of drawing optical filaments

1978-02-21

1979-05-15

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 3A, 65 13, 65 32, 65DIG7, C03B 3700

Patent

active

041545923

ABSTRACT:
A method of forming an article such as an optical waveguide filament by disposing a draw blank in a cylindrical muffle. The muffle is heated to a temperature sufficient to cause a first end of the blank to reach the drawing temperature of the material thereof. A filament is drawn from the first end of the blank while a helium-containing gas flows through the muffle in such a direction that it is exhausted from that end of the muffle from which the filament is being drawn.

REFERENCES:
patent: 3540870 (1970-11-01), Li
patent: 3823995 (1974-07-01), Carpenter
patent: 3933454 (1976-01-01), De Luca
patent: 4030901 (1977-06-01), Kaiser

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