Raw material supply device

Details Raw material supply device Raw material supply device

1984-02-06

1985-10-08

Schor, Kenneth M.

Glass manufacturing

Means providing special atmosphere

118693, 118715, 118726, 137209, 137211, C03P 3700

Patent

active

045458014

ABSTRACT:
A device is disclosed for supplying a glass raw material gas in the form of the mixed gas consisting of the glass raw material gas and the carrier gas to a vapor deposition device for producing a preform of an optical fiber, the supply device including a secondary raw material container having a pressurizable interior and provided adjacent to a main raw material container. The bottoms, or areas near the bottoms, of the two containers are interconnected via a pipe including at a mid portion thereof a switching valve and a device for adjusting the flow rate of the raw material liquid between the two containers. Liquid level detectors are provided in one or both containers to maintain the constant volume of the liquid raw material so as to provide a constant state inside the main raw material container. The operation of this device can easily be entirely automated.

REFERENCES:
patent: 2376694 (1945-05-01), Hewlett
patent: 3084708 (1963-04-01), Herrero
patent: 3195464 (1965-07-01), Shetler
patent: 3473959 (1969-10-01), Ehinger
patent: 3901182 (1975-08-01), Chiang
patent: 4295913 (1981-10-01), Purr
patent: 4314837 (1982-02-01), Blankenship

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