Injection molding apparatus

Details Injection molding apparatus Injection molding apparatus

1997-06-18

1999-10-19

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

Mold having movable core or movable pin

B29C 4556

Patent

active

059685646

ABSTRACT:
A molded container top 140 has engravings 145 formed by an embossing 108. The core 120 withdrawn from the cavity 102 and a retaining ring 110 holds the hot molded part 140 in the cavity 102. The molded part 140 shrinks away from the cavity 102 and is pushed out of the cavity 102 by an ejector 105. The part 140 has no witness lines on its circumferential skirt 142.

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