Method of and apparatus for molding glass articles

Details Method of and apparatus for molding glass articles Method of and apparatus for molding glass articles

1988-09-26

1990-04-10

Lindsay, Robert L.

Glass manufacturing

Processes

Sequentially forming, reheating, and working

65 76, 65268, 65286, 65323, C03B 2300

Patent

active

049157205

ABSTRACT:
A method of and an apparatus for molding glass articles. A first pressing of glass preform within a mold is carried out at a first pressing position, when the glass preform has its viscosity within a range of from 10.sup.8 to 10.sup.9.5 poises. The mold having accommodated therein the pressed glass is transferred from the first pressing position to a second pressing position where a second pressing is carried out with respect to the pressed glass within the mold when the pressed glass has its viscosity within a range of from 10.sup.10.5 to 10.sup.12 poises.

REFERENCES:
patent: 3951636 (1976-04-01), Gunthner
patent: 4629489 (1986-12-01), Hirota et al.
patent: 4738703 (1988-04-01), Izumitani et al.
patent: 4778505 (1988-10-01), Hirota et al.

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