High pressure modular forehearth

Details High pressure modular forehearth High pressure modular forehearth

1980-10-02

1982-04-20

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 2, 65 12, C03B 37025

Patent

active

043257216

ABSTRACT:
A high pressure modular forehearth which receives molten glass under pressure and supplies the molten glass to a plurality of high pressure glass fiber forming bushings is disclosed. Glass is melted in suitable means and is supplied to a modular molten glass column. The high pressure modular forehearth is secured at the lower end of the glass column by a transition module. The modular forehearth is provided with suitable heating elements to maintain the molten glass at a desired temperature. Each module of the forehearth is structured to receive a high pressure glass fiber forming bushing through which the molten glass is forced under pressure to form glass fiber filaments.

REFERENCES:
patent: 2465283 (1949-03-01), Schlehr
patent: 3625025 (1971-12-01), Jensen
"The Manufacturing Technology of Continuous Glass Fibers", Loewenstein, Elsevier Scientific Publishing Co., NY, 1973, pp. 56-70.

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