Single-sided shuttle-type blow molding apparatus

Details Single-sided shuttle-type blow molding apparatus Single-sided shuttle-type blow molding apparatus

2006-07-26

2010-11-16

Davis, Robert B (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

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

Including means to prepare parison

C425S534000, C425S537000, C425S538000

Reexamination Certificate

active

07833006

ABSTRACT:
A single-sided shuttle-type blow molding apparatus having an extruder for substantially continuously extruding a thermoplastic material in tubular form at a moldable temperature downwardly along a vertical axis. The apparatus includes a mold having a set of mold parts adapted to open and close relative to each other to define, when closed, a mold cavity. A shuttle having the mold mounted thereon is arranged to move along a closed path from a first position wherein the mold engages, when open, a finite length of the thermoplastic tube, to a second position away from the first position. The apparatus further includes a blow head adapted to blow the finite length of the thermoplastic tube to form the container as the mold moves from the first position to the second position of the closed path. The apparatus includes no more than one mold. A method is also described.

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