Plunger for use in forming parisons

Details Plunger for use in forming parisons Plunger for use in forming parisons

1986-01-24

1987-04-28

Kellogg, Arthur

Glass manufacturing

Plunger

65169, 6537415, C03B 1106

Patent

active

046611436

ABSTRACT:
A plunger (10; 30) for use in forming parisons during the manufacture of glass containers has a glass-contacting surface layer (18; 38) formed by a material which has, at least in a tip region of the plunger, a thermal conductivity in directions parallel to the glass-contacting surface (16; 36) of the layer greater than its thermal conductivity normal to the glass-contacting surface. A suitable material is pyrolytic graphite.

REFERENCES:
patent: 3157482 (1964-11-01), Nero et al.
patent: 3202498 (1965-08-01), Torok
patent: 3288629 (1966-11-01), McCreight
patent: 3399985 (1968-09-01), Greenler et al.

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