Process for blow molding of a spout container

Details Process for blow molding of a spout container Process for blow molding of a spout container

1976-02-09

1978-04-04

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

222529, 425525, B29C 1707

Patent

active

040828271

ABSTRACT:
A process for the production of a blow molded container having an improved spout withdrawal means provided thereon. Process steps of the present invention generally comprise the extrusion of a thermoplastic parison in a pliant form between a plurality of mold sections; bringing the mold sections together into registry and entrapping the parison therebetween at points above and below mold cavities that are provided in said mold sections; simultaneously entrapping a portion of said parison adjacent an end of said mold between angularly presented forming sections, and compression molding an integral portion of said container at an angle with respect to the container to develop a memory bias therein; and injecting a blowing fluid internally of said parison to inflate the parison into conformity with the cavities in said mold, whereby a blow molded container is produced having a compression molded integral portion extending outwardly therefrom.

REFERENCES:
patent: 3481501 (1969-12-01), Anderson
patent: 3690522 (1972-09-01), Chlystun
patent: 3856187 (1974-12-01), Chlystun

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