Process and apparatus for forming compound structure of various

Details Process and apparatus for forming compound structure of various Process and apparatus for forming compound structure of various

1978-01-26

1979-06-12

Hoag, W. E.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

264255, 264297, 264328, 425129R, 425130, 425588, B29C 100, B29C 500, B29F 1022

Patent

active

041578830

ABSTRACT:
Upper and lower injection mold halves forming between them successive spaces defining the configuration of parts that are to be injection molded and integrally joined into a compound structure. Movable plate means are transversely disposed between the successive spaces and have an aperture. The plate means initially blocks fluid communication between successive spaces in the mold so that one part can be injection molded, followed by injection molding of the second part after the plate means has been moved so that its aperture allows the injected plastic material of the second part to flow through the aperture and into contact with the molded first part, thereby plastically uniting the two parts into an integral or compound structure.

REFERENCES:
patent: 3028284 (1962-04-01), Reeves
patent: 3822107 (1974-07-01), Wogerer
patent: 3825637 (1974-07-01), Robin
patent: 3957278 (1976-05-01), Rabe

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