Needle assembly for gas-assisted injection moulding

Details Needle assembly for gas-assisted injection moulding Needle assembly for gas-assisted injection moulding

2004-05-12

2008-08-26

Gupta, Yogendra (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

C264S572000

Reexamination Certificate

active

07416398

ABSTRACT:
A fluid injection and exhaust needle for use in gas injection moulding comprising a needle with two separate flow channels; a fluid inlet channel and a fluid outlet channel; wherein gas is injected into the melt via the fluid inlet channel to form a gas cavity in the melt, and gas is simultaneously exhausted from the cavity via the fluid outlet channel.

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