Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – Molding of thermosetting or cross-linking stock
Patent
1988-06-07
1990-03-20
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
Molding of thermosetting or cross-linking stock
2643284, 366 76, 366 79, 366 93, 425557, 425558, 425562, B29C 4552
Patent
active
049097245
ABSTRACT:
An injection apparatus of a plunger type for injecting reinforced materials such as BMC is of a single barrel type or a double barrel type having a rotatable plunger disposed in the barrel. A check valve device for preventing a back flow of the materials in a metering process is provided such that it is closed when the plunger is actuated to move axially for injection.
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Hashimoto Kiyoshi
Sonoda Takefumi
Heitbrink Timothy W.
Ube Industries Ltd.
Woo Jay H.
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