Device for blow-molding or blow-drawing of thermoplastic...

Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Including means to close or lock blow mold

Reexamination Certificate

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Details

C425S540000

Reexamination Certificate

active

10523364

ABSTRACT:
A device for blow molding or blow drawing of containers made of thermoplastic performs. The molding device is movable, mainly rotatable and includes at least one wallet-type mold provided with two mold-halves rotatable with respect to each other around an axis; two links which are connected to each other by one of the extremities thereof with the aid of a first pivot pin and pivotally connected to two mold-halves by the other extremities thereof on both sides of the common pivoting axis thereof; actuation devices which are connected to the first pivot pin and provided with at least one cam follower interacting with at least one respective fixed cam so that the first pivot pin is moved in a direction toward the mold or away therefrom, thereby opening or closing the mold. A compensating device acts so that at least one cam follower permanently contacts the respective cam.

REFERENCES:
patent: 2750625 (1956-06-01), Colombo
patent: 3496599 (1970-02-01), Grant
patent: 5240718 (1993-08-01), Young et al.
patent: 5346386 (1994-09-01), Albrecht et al.
patent: 6805548 (2004-10-01), Evrard
patent: 2 737 436 (1997-02-01), None
patent: 2 225 274 (1990-05-01), None

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