Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – And means to form or reshape preform
Patent
1976-04-09
1978-02-21
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Distinct means to feed, support or manipulate preform stock...
And means to form or reshape preform
264263, 425129R, B29F 110
Patent
active
040749614
ABSTRACT:
A container for storing liquids is injection molded of thermoplastic material in apparatus which includes a plurality of central die members intermittently movable in succession along a given direction and a pair of side die members flanking said central die members and movable into and out of operative engagement therewith. The container is injection molded within a die cavity formed between the central die members and the side die members with two sheets of a base material being fed from opposite sides of said central die members into said die cavity to form a base member for said container. The container base member formed from said sheets of base material is engaged about the central die members and when the side die members are brought into operative engagement with the central die members thermoplastic material is injected into the die cavity formed therebetween and the container is produced by injection molding the thermoplastic material integrally with the base member within the die cavity. The die cavity is configured to form the container with an open bottom end having a bottom closure member partially connected thereto to enable bottom filling of the container and subsequent sealing of the bottom end by pivoting of the bottom closure member into sealing engagement with the bottom end of the container. After the injection molding process is completed, the side die members are separated from the central die members and the formed container is ejected from the central die member about which it is formed. During the injection molding process the sheets of base material are joined together by a seal formed between the edges thereof in order to enable the sheets to be pulled along with the central die members as they move through the apparatus in the performance of the injection molding process.
REFERENCES:
patent: 3154617 (1964-10-01), Schenk et al.
patent: 3476852 (1969-11-01), Shattuck
patent: 3511902 (1970-05-01), Santangelo
patent: 3709967 (1973-01-01), Held, Jr.
patent: 3743458 (1973-07-01), Hallauer
patent: 3780559 (1973-12-01), Turner
Altstadter Verpackungs-Vertriebs GmbH
Briggs W. R.
Husar Francis S.
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