Injection apparatus

Details Injection apparatus Injection apparatus

1986-04-16

1988-08-30

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Including restriction upstream of shaping orifice and...

425564, 425586, 425587, B29C 4523

Patent

active

047673060

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 comprising a rotatable plunger disposed in the barrel. A check valve means 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 et al., "Unique Thermoset Injection Molding System for Auto Body Panels", Society of Automotive Engineers, Inc., Feb. 1987.

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