Triple stack molding arrangement

Details Triple stack molding arrangement Triple stack molding arrangement

1993-08-16

1994-12-06

Mackey, James

Plastic article or earthenware shaping or treating: apparatus

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

With means to heat or cool

425568, 425572, 425588, B29C 4532

Patent

active

053705238

ABSTRACT:
A triple stack mold which is operated by a standard mold press and which presents three molding interfaces. Molten plastic is supplied to all molding cavities in equal amounts through a distribution system that includes manifolds in the mold components which receive the plastic and distribute it through passages leading to the mold cavities. The main passages leading to the manifolds are equipped with special nozzles constructed to compensate for differential thermal expansion of the mold parts.

REFERENCES:
patent: 3663145 (1972-05-01), Teraoka
patent: 4971747 (1990-11-01), Sorensen
patent: 5229145 (1993-07-01), Brown et al.

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