Plunger for forming hollow glass articles

Details Plunger for forming hollow glass articles Plunger for forming hollow glass articles

1975-10-16

1976-12-14

Kellogg, Arthur D.

Glass manufacturing

Plunger

65319, 65356, C03B 1110

Patent

active

039973182

ABSTRACT:
A plunger for forming hollow glass articles and having a nose piece projecting outwardly of its pressing surface, incorporates a main cooling system for cooling the main pressing surface extending around the nose piece, and a sub-cooling system located interiorly of the nose piece and independently of the main cooling system for cooling the nose piece, thereby making it possible to control the temperature of the nose piece by means of the sub-cooling system which employs a refrigerant having a different cooling efficiency from the refrigerant of the main cooling system.

REFERENCES:
patent: 3285728 (1966-11-01), Torok

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