Expandable hot runner manifold

Details Expandable hot runner manifold Expandable hot runner manifold

1996-12-23

1998-09-08

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

2643288, 425572, 425588, B29C 4522

Patent

active

058042318

ABSTRACT:
A manifold for a hot process injection molding apparatus includes a two piece manifold assembly. A first manifold section which includes a longitudinal melt channel and a nozzle drop to a mold is fixably secured to a manifold cavity of the apparatus. A second manifold section also including a longitudinal melt channel is sealably and slidably coupled with the first manifold section for fluidly communicating molding material from the second melt channel to the first melt channel. Expansion and contraction of the manifold sections are taken up by the slidable coupling.

REFERENCES:
patent: 4702689 (1987-10-01), Schmidt et al.
patent: 4761343 (1988-08-01), Gellert
patent: 5032078 (1991-07-01), Benenati

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