Injection moulding machinery

Details Injection moulding machinery Injection moulding machinery

1974-01-18

1976-03-23

Shore, R. J.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

425245R, 425817R, 425DIG225, B29F 105

Patent

active

039457842

ABSTRACT:
A shuttle is mounted in a passage connecting ducts from injection barrels. An outlet in the passage wall connects to a common sprue channel. The shuttle isolates one duct from the opening at each end of its travel but at no time blocks the opening. The shuttle is preferably a ball and is preferably located in the spigot of a shut-off tap.

REFERENCES:
patent: 2371293 (1945-03-01), Hoof
patent: 3008482 (1961-11-01), Hunter
patent: 3690797 (1972-09-01), Garner
patent: 3733156 (1973-05-01), Garner

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