Molding apparatus

Details Molding apparatus Molding apparatus

1977-08-18

1978-09-12

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

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

425256, 425812, 17 32, A22C 700, B29C 100

Patent

active

041134150

ABSTRACT:
An apparatus for pressure molding a shaped article from moldable material comprising a pressured supply of material to a mold opening with vent means controlled by a normally open but automatically closed valve for venting air from in front of the material advancing into the mold opening together with means operated by the advancing material for closing the valve means after the air is vented, thereby aiding in preventing the entrapment of air within the mold opening.

REFERENCES:
patent: 3347176 (1967-10-01), Hall
patent: 3964127 (1976-06-01), Holly

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