Apparatus for the injection molding of fluid-filled plastic bodi

Details Apparatus for the injection molding of fluid-filled plastic bodi Apparatus for the injection molding of fluid-filled plastic bodi

1990-09-21

1992-02-25

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

2643288, 26432813, 264572, 425572, 425588, B29C 4516

Patent

active

050908863

ABSTRACT:
A device for producing moldings of plastic material having a cavity therein filled with a fluid comprises a mold cavity, an injector for injecting flowable plastic into the mold cavity, an injector for injecting a pressurized fluid into an interior portion of the plastic, and a side cavity connected to the mold to receive flowable plastic melt expelled by the injected pressurized fluid. The side cavity may be randomly lockable and may comprise a closing stuffer which rests flush with respect to the mold cavity interior walls.

REFERENCES:
patent: 4029454 (1977-06-01), Monnet
patent: 4101617 (1978-07-01), Friederich
patent: 4909725 (1990-03-01), Ward
patent: 4923666 (1990-05-01), Yamazaki et al.

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