Piston driven pin closure nozzle assembly

Details Piston driven pin closure nozzle assembly Piston driven pin closure nozzle assembly

1993-08-27

1994-12-27

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With means between charger and mold to cut off flow of...

2643289, 425564, 425566, 425570, B29C 4523

Patent

active

053759940

ABSTRACT:
A pin closure nozzle for injection molding molds has several working pistons acting on the same closure pin. These working pistons are arranged on a common throughgoing piston rod. Each piston rides in its own chamber and the piston rod passes through and is slidingly guided in openings in the chamber floors. The piston rod thus has at least two sliding guides and is accordingly prevented from tilting.

REFERENCES:
patent: 5223275 (1993-06-01), Gellert

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