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
1991-06-12
1994-04-19
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...
425564, 425568, 425584, 425DIG224, B29C 4520
Patent
active
053040589
ABSTRACT:
An apparatus for gas assisted injection molding is shown including a source of injection gas and a source of molten plastic or synthetic resin material. The apparatus includes an injection nozzle with a minimum of moving parts. The injection nozzle includes a nozzle body portion having an axially extending bore therethrough for establishing a flow path. A valve chamber is provided in the axially extending bore, and a spherical valve is mounted in the valve chamber for rotation between a first position in which a first flow path is established, and a second position in which a second flow path is established. A sealing member sealingly mounts the spherical valve in the valve chamber, and means to activate the spherical valve are included.
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Automotive Plastic Technologies
Smith Duane S.
Woo Jay H.
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