Hot runner coinjection nozzle with thermally separated melt...

Details Hot runner coinjection nozzle with thermally separated melt... Hot runner coinjection nozzle with thermally separated melt...

2007-04-24

2007-04-24

Gupta, Yogendra N. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

C425S130000, C425S549000, C425S573000

Reexamination Certificate

active

10880494

ABSTRACT:
Coinjection molding nozzle apparatus and method includes structure and/or steps whereby a first nozzle melt channel is kept thermally separated from a second nozzle melt channel. Preferably, grooves in the nozzle body or a separate nozzle pipe keep the first and second nozzle melt channels thermally separated. Preferably, a highly thermally conductive nozzle tip is removably coupled to the nozzle body and includes first and second nozzle tip melt channels that merge together before the mold gate.

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patent: 6261075 (2001-07-01), Lee et al.
patent: 6575729 (2003-06-01), Godwin et al.
patent: 6739863 (2004-05-01), Olaru

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