Injection molding apparatus having a cooled core

Details Injection molding apparatus having a cooled core Injection molding apparatus having a cooled core

1998-01-20

1999-08-10

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

425552, B29C 4573

Patent

active

059356219

ABSTRACT:
Injection molding hot runner apparatus having a cooled mold core with an elongated body portion with a front portion or head. A cooling tube extends centrally in body portion of the mold core. A cooling fluid circuit extends from the open front end of the cooling tube outwardly through a number of spaced radial bores. Each radial bore connects to an L-shaped duct leading back to a cylindrical space around the cooling tube.

REFERENCES:
patent: 3760874 (1973-09-01), Boskovic
patent: 4622001 (1986-11-01), Bright et al.
patent: 4655280 (1987-04-01), Takahashi
patent: 4800953 (1989-01-01), Veldhoff
patent: 4966544 (1990-10-01), Mitake
patent: 5094603 (1992-03-01), Gellert
patent: 5443381 (1995-08-01), Gellert

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