Machining chamber for a glass compresson molding machine

Details Machining chamber for a glass compresson molding machine Machining chamber for a glass compresson molding machine

1995-01-31

1997-04-01

Czaja, Donald E.

Glass manufacturing

Means providing special atmosphere

65260, 65275, 65286, 65305, 65319, 65 321, 65102, 425407, 425808, C03B 1100

Patent

active

056161611

ABSTRACT:
A machining chamber encloses a glass molding apparatus including a molding die assembly composed of upper and lower molding dies cooperating to define a mold therebetween. The glass molding apparatus, contained within the sealed machining chamber, further includes a clamping/heating/compressing station, a cooling station and a preform-loading/molding-ejecting station. A shutter is provided in the casing for selectively opening the casing to the ambient atmosphere. An annular nozzle surrounds a molding surface provided on one of the upper and lower molding dies and is used to supply a first inactive-gas to the region between the two dies. A second, independent inactive-gas supply provides inactive-gas directly into the sealed casing, whereby the region between the dies is maintained at a lower oxygen level than that within the remainder of the sealed casing.

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patent: 5403370 (1995-04-01), Morikita

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