Injection molding nozzle for plastic with at least two...

Details Injection molding nozzle for plastic with at least two... Injection molding nozzle for plastic with at least two...

2008-01-29

2008-01-29

Gupta, Yogendra N. (Department: 1722)

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...

C425S563000, C425S568000, C425S572000

Reexamination Certificate

active

07322817

ABSTRACT:
An injection molding nozzle (1) for plastic with at least two outlet openings (2) facing toward different sides and directed oppositely is not constructed as an open injection molding nozzle but has a respective closure needle (5) in the outlet openings (2), and a drive is also provided for displacing the closure needles (5) at least into the closing position. Thus a cold plug at the end of the outlet openings (2) facing a mold (3) can be avoided, independently of whether the closure needles completely close these outlet openings (2) at their mouth (6) or still leave a minimum gap.

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