Apparatus for manufacturing bodies of polymeric material having

Details Apparatus for manufacturing bodies of polymeric material having Apparatus for manufacturing bodies of polymeric material having

1994-03-08

1994-11-29

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

With mechanical means forming or expanding pores

264 451, 264 466, 4251331, 425817R, B29C 4720

Patent

active

053684583

ABSTRACT:
an apparatus for producing bodies of polymeric material having an outer shell and a core of foamed material is disclosed. The apparatus includes an extruder and accumulation chamber for extruding a tubular element, i.e., a parison, and a second extruder and accumulation chamber for injecting a foamable polymeric material for forming the core of the body inside the parison. The injection occurs inside the walls of a mold, which causes the tubular parison to undergo swelling due to the expansion of the foamable material until the parison conforms to the shape of the mold.

REFERENCES:
patent: 3378612 (1968-04-01), Dietz
patent: 3389197 (1968-06-01), Flynn et al.
patent: 3736201 (1973-05-01), Teraoka
patent: 3901958 (1975-08-01), Doll
patent: 4092385 (1978-05-01), Balevski et al.
patent: 4149839 (1979-04-01), Iwawaki et al.
patent: 4874649 (1989-10-01), Daubenbuchel et al.
patent: 5093054 (1992-03-01), Hirota

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