Nozzle construction for a triple stack molding arrangement

Details Nozzle construction for a triple stack molding arrangement Nozzle construction for a triple stack molding arrangement

1994-06-10

1996-01-16

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

425192R, 425549, 425568, 425572, B29C 4520

Patent

active

054842751

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: 3281898 (1966-11-01), Compton
patent: 3553788 (1971-01-01), Putkowski
patent: 3663145 (1972-05-01), Teraoka
patent: 3843294 (1974-10-01), Bielfeldt et al.
patent: 3934626 (1976-01-01), Hall
patent: 4787836 (1988-11-01), Osuna-Diaz et al.
patent: 4971747 (1990-11-01), Sorensen
patent: 5208052 (1993-05-01), Schmidt et al.
patent: 5229145 (1993-07-01), Brown et al.

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