Apparatus for producing molded plastic articles

Details Apparatus for producing molded plastic articles Apparatus for producing molded plastic articles

1998-03-06

2000-03-07

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With coupling between charger and mold

425572, 425588, B29C 4522

Patent

active

060332069

ABSTRACT:
A method and apparatus for dividing the output flow of molten plastic from a conventional molding machine into a plurality of independent molten plastic flows to permit a plurality of plastic articles to be molded simultaneously from a single molding machine. The apparatus comprises a molding tool having a distributor member which divides the flow of molten plastic from an output port of a molding machine evenly into a pair of fluid flow bores. A pair of conventional flow nozzles are incorporated which receive the independent flow streams of molten plastic and independently charge a pair of molding cavities of a molding die generally simultaneously. The molding tool enables a more than 100% increase in the flow of molten plastic therethrough due to the reduction of back pressure seen by the molding machine and more than doubles the efficiency of the molding machine.

REFERENCES:
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patent: 3568256 (1971-03-01), Johnson, Jr.
patent: 3758252 (1973-09-01), Kohler
patent: 4319872 (1982-03-01), Lupke et al.
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patent: 4374079 (1983-02-01), Fouss et al.
patent: 5002478 (1991-03-01), Lupke
patent: 5252287 (1993-10-01), Fries
patent: 5456589 (1995-10-01), Lupke
patent: 5494430 (1996-02-01), Berns et al.
patent: 5566722 (1996-10-01), Bartholomew

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