Dual parison stacked clamp blow molding apparatus

Details Dual parison stacked clamp blow molding apparatus Dual parison stacked clamp blow molding apparatus

1994-06-06

1996-09-03

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including means to prepare parison

264540, 264543, 4254516, 4254519, 425540, 425541, B29C 4956

Patent

active

055518621

ABSTRACT:
A blow molding apparatus including a clamp for clamping two molds in fixed, back-to-back relationship, the clamp having a central platen supporting interior sections of two molds in a fixed, back-to-back relationship, and first and second movable platens supporting exterior mold sections facing the interior sections. The apparatus also includes a clamp positioner to move the movable platens between opened and closed positions, an extruder to extrude parisons between mold sections, injectors to inject air into the interior of the parisons, and a central platen retainer to resiliently position the central platen between the movable platens.

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