Rear opening mold

Details Rear opening mold Rear opening mold

1986-03-12

1988-03-15

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

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

With product ejector

249 63, 249122, 249144, 249152, 249180, 249184, 264318, 264334, 425441, 4254501, 4254519, 425577, 425DIG58, B29C 4544

Patent

active

047310146

ABSTRACT:
A mold, typically an injection mold, comprises a cavity member and a core member relatively movable between open and closed positions to define a first parting line and a molding chamber between the core and cavity members in the closed position. A sprue aperture is provided, communicating with the molding chamber to provide molding compound to the chamber. In accordance with this invention the cavity member defines forward and rearward portions movable between open and closed positions and proportioned whereby objects molded in the molding chamber can be removed from between the forward and rear portions when the cavity member is in its open position.

REFERENCES:
patent: 4286766 (1981-09-01), Von Holdt
patent: 4362291 (1982-12-01), Fuke et al.
patent: 4378928 (1983-04-01), Kopp et al.
patent: 4533312 (1985-08-01), Von Holdt
patent: 4627810 (1986-12-01), Von Holdt

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