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...
Patent
1988-01-25
1989-05-23
Woo, Jay H.
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...
2643288, 2643289, 425566, 425568, 425571, 425572, B29C 4523
Patent
active
048325937
ABSTRACT:
The present invention relates to a system for injection molding large parts. The system includes a large diameter hot runner valve gated nozzle assembly which can be removed for servicing. The assembly includes a heated nozzle body having a substantially C-shaped flow channel for conveying molten plastic to a nozzle having an injection gate and a valve arrangement for opening and closing the injection gate. The assembly further includes a nozzle extension attached to the nozzle body so as to accommodate thermal expansion of the nozzle extension. A manifold for supplying molten plastic material to the nozzle assembly is mounted and retained within a slot in the nozzle extension so as to permit sliding action of the manifold.
REFERENCES:
patent: 2773284 (1956-12-01), Kelly
patent: 3488810 (1970-01-01), Gellert
patent: 3999894 (1976-12-01), Nakayama et al.
patent: 4173448 (1979-11-01), Rees et al.
patent: 4212626 (1980-07-01), Gellert
patent: 4378963 (1983-04-01), Schouenberg
patent: 4449915 (1984-05-01), Van Den Brink
patent: 4682945 (1987-07-01), Schad
Mold Master, System V12 "Single".
Cylinder Design, Recommendations.
Heitbrink Timothy W.
Husky Injection Molding Systems Ltd.
Woo Jay H.
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