Method for molding hinged article

Details Method for molding hinged article Method for molding hinged article

1983-11-23

1986-04-01

Czaja, Donald

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

2643288, B29C 4522

Patent

active

045797099

ABSTRACT:
A mold and method are provided for molding a pair of hinged articles in a single molding operation. Plastic melt is introduced into a mold containing cavities for a pair of hinge leaves, each of the leaf cavities is provided with a hinge cavity. A pin assembly containing a hollow outer pin and solid inner pin is shifted from a first position wherein the hollow pin engages one of the leaf cavities to a second position wherein the hollow pin clears the outer of the cavities. The hollow pin is vented past the solid pin.

REFERENCES:
patent: 3443005 (1969-05-01), Braun

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