Apparatus for injection molding of bodies with a core and skin o

Details Apparatus for injection molding of bodies with a core and skin o Apparatus for injection molding of bodies with a core and skin o

1973-12-07

1976-03-30

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

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

425245R, 425248, 425817R, 425DIG224, 2221445, 222525, B29F 110

Patent

active

039471756

ABSTRACT:
Injection molding apparatus for discontinuous fabrication of molded bodies consisting of a plurality of layers with a foaming core and an outer skin of non-foaming thermoplastic material, the apparatus consisting of an injection head connected to two extruders and equipped with a centrally-located jet surrounded by a ring jet.

REFERENCES:
patent: 3070126 (1962-12-01), Schneider
patent: 3436793 (1969-04-01), Trueblood
patent: 3488810 (1970-01-01), Gellert
patent: 3541946 (1970-11-01), Johnston
patent: 3599290 (1971-08-01), Garner
patent: 3733156 (1973-03-01), Garner
patent: 3778209 (1973-12-01), Wallace et al.
patent: 3793415 (1974-02-01), Smith
patent: 3894823 (1975-07-01), Hanning

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