Composite threshold assembly for a molten glass delivery apparat

Details Composite threshold assembly for a molten glass delivery apparat Composite threshold assembly for a molten glass delivery apparat

1976-06-02

1977-12-13

Kellogg, Arthur D.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 65A, 65182R, C03B 1802

Patent

active

040626660

ABSTRACT:
A glass delivery facility connecting a glassmaking furnace with a molten metal-containing glass forming chamber employs a threshold assembly having a front face base block having a foot which extends downstream from the threshold-molten metal interface beneath the molten metal and having a transverse subsurface gap for directing gases from the molten metal to the sides of delivery facility so that gas bubbles are removed to avoid deformation of the underside of flat glass being produced.

REFERENCES:
patent: 3305339 (1967-02-01), Plumat
patent: 3334983 (1967-08-01), Badger et al.
patent: 3551126 (1970-12-01), Sacrez et al.
patent: 3584475 (1971-06-01), Galey et al.

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