Equipment for the injection-moulding of containers or parisons f

Details Equipment for the injection-moulding of containers or parisons f Equipment for the injection-moulding of containers or parisons f

1997-02-03

1998-06-16

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

2642978, 2643288, 425572, 425588, B29C 4516

Patent

active

057666512

ABSTRACT:
The equipment is for the moulding of plastics containers made of two different materials, particularly for the production of parisons for PET bottles comprising an inner portion of virgin PET and an outer portion of recycled PET. The equipment comprises a die plate having rotatable supports each carrying a pair of cores or male elements which are thus associated alternately with matrices of two different types so as to produce the inner portions and the outer portions of the parisons in two successive moulding steps.

REFERENCES:
patent: 3482284 (1969-12-01), Rees
patent: 3947176 (1976-03-01), Rainville
patent: 4047873 (1977-09-01), Farrell
patent: 4744742 (1988-05-01), Aoki
patent: 4885121 (1989-12-01), Patel

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