Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1975-08-29
1978-02-28
Lowe, James B.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264138, 264247, 264267, 264268, 264275, 264327, B29D 300, B29C 602
Patent
active
040767906
ABSTRACT:
A method of incorporating a pre-cut foil sheet in a container moulded from a thermoplastic material by injection moulding techniques during the process of moulding the container. The foil sheets are fed singly from a store to a position of registry with the free end of the plunger forming part of the mould of the injection moulding apparatus, whereafter the mould is closed, the foil sheet being wrapped around the plunger upon entry thereof into the die. A moulding compound is then injected into the mould. The stream of moulding compound entering the mould is guided so that the foil sheet is either located on the inner surface of the moulded object or on the outer surface thereof.
REFERENCES:
patent: 699632 (1902-05-01), Richards
patent: 2619679 (1952-12-01), Baldanza
patent: 2684502 (1954-07-01), Paulve
patent: 3154617 (1964-10-01), Schenk et al.
patent: 3270101 (1966-08-01), Jardine et al.
patent: 3331904 (1967-07-01), Friedman
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