Fluid supply apparatus for blow mold

Details Fluid supply apparatus for blow mold Fluid supply apparatus for blow mold

1995-09-07

1997-04-22

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

Including means to prepare parison

425535, B29C 4918

Patent

active

056227353

ABSTRACT:
A fluid supply apparatus for a blow mold, which includes a control valve having multiple positions for alternatively supplying fluid to the blow mold from a fluid supply and a metering chamber. The control valve has a further position configured to fill the metering chamber with fluid, and empty the blow mold chamber into an exhaust conduit. The apparatus is useful for performing pulse blow inflations at a high-strain rate in order to increase the crystallinity level in the body of a container.

REFERENCES:
patent: 3257485 (1966-06-01), Scott, Jr.
patent: 3733309 (1973-05-01), Wyeth et al.
patent: 4617077 (1986-10-01), Giese et al.
patent: 4935190 (1990-06-01), Tennerstedt

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