Glass fiber forming bushing assembly

Details Glass fiber forming bushing assembly Glass fiber forming bushing assembly

1986-12-05

1987-11-03

Lindsay, Robert L.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 27, 65172, C03B 3702

Patent

active

047041501

ABSTRACT:
A bushing assembly is described which involves two fiber glass bushings, one being a production bushing and the other a permanent bushing attached to a fiber glass forehearth. Restricted flow channels are provided in the upper bushing to flow small quantities of glass into the production bushing. Means are provided to electrically isolate one bushing from the other, and means are provided to cool the flow channels from the upper bushing to the lower bushing.

REFERENCES:
patent: 1608967 (1926-11-01), Tucker et al.
patent: 4119411 (1978-10-01), Anderson et al.
patent: 4167403 (1979-09-01), Coggin
patent: 4332602 (1982-06-01), Jensen
patent: 4351656 (1982-09-01), Jensen
patent: 4363645 (1982-12-01), Eisenbergh

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