Mix head bushing seal

Details Mix head bushing seal Mix head bushing seal

1991-04-22

1992-01-28

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

425DIG227, B29C 4520

Patent

active

050839136

ABSTRACT:
A mix head bushing including a body portion having first and second ends. The body portion includes a flange extending radially outwardly from the first end thereof and an essentially conical passage extending therethrough to define a first opening at the first end of the body portion and a second smaller opening at the second end of the body portion. The body portion further includes a second flange having an inner edge extending radially inwardly partially over the second opening. A resilient coating is adhered to the body portion in the passage and extends inwardly beyond the inner edge of the second flange.

REFERENCES:
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patent: 3052925 (1962-09-01), Bronnenkant et al.
patent: 3070846 (1963-01-01), Schrier
patent: 3718166 (1973-02-01), Gordon
patent: 3837777 (1974-09-01), Hunten et al.
patent: 3915610 (1975-10-01), Kohler
patent: 4043740 (1977-08-01), Gellert
patent: 4666396 (1987-05-01), Shaw
patent: 4743188 (1988-05-01), Gray
patent: 4747770 (1988-05-01), Schmidt
patent: 4917595 (1990-04-01), Nakamura et al.
patent: 4950154 (1990-08-01), Moberg

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