Method of making optical waveguides using glass forming pulverul

Details Method of making optical waveguides using glass forming pulverul Method of making optical waveguides using glass forming pulverul

1987-07-16

1989-03-07

Schor, Kenneth M.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 181, 65900, 65 321, 264120, 264500, C03B 1906, C03B 37012

Patent

active

048102750

ABSTRACT:
A method of making optical waveguides is disclosed in which, to fabricate a preform, glass forming pulverulent material is filled into a mold by means of one or more screw conveyors. The quantity of glass forming pulverulent material filled into the mold per unit of time is increased by passing a suitable gas through the apparatus. Thus, the quantity conveyed per unit of time can also be controlled by adjusting the gas pressure. By using a dry gas, the moisture content of the powder can be reduced.

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patent: 4473526 (1984-09-01), Buhler
patent: 4620862 (1986-11-01), Dorn
patent: 4661136 (1987-04-01), Dorn

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