Adjustable hot sprue bushing

Details Adjustable hot sprue bushing Adjustable hot sprue bushing

1992-03-19

1993-05-25

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With means to heat or cool

26432815, 425567, B29C 4520

Patent

active

052138240

ABSTRACT:
A highly reliable hot sprue bushing for use in controlling the temperature of plasticized material while it flows from the nozzle to the runner or sprue system in an injection molding machine. Advantageously, the hot sprue bushing is adjustable in length so that it can be used with a full range of standard or custom mold plate thicknesses or other required lengths.

REFERENCES:
patent: 4034952 (1977-07-01), Stewart
patent: 4266723 (1981-05-01), Osuna-Diaz
patent: 4273525 (1981-06-01), Reitan
patent: 4309163 (1982-01-01), Cottancin
patent: 4563149 (1986-01-01), Landis
patent: 4593182 (1986-06-01), Schwarzkopf
patent: 4666396 (1987-05-01), Shaw
patent: 4882469 (1989-11-01), Trakas

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