Valve nozzle of injection molding machine

Details Valve nozzle of injection molding machine Valve nozzle of injection molding machine

1979-11-30

1981-08-25

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

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

With means between charger and mold to cut off flow of...

425566, B29F 103

Patent

active

042856612

ABSTRACT:
A valve nozzle is used at an end of a hot runner or an injection molding machine for an injection molding. The valve nozzle comprises a cylinder as a body of the nozzle, and a piston. The cylinder has a gate and has a larger inner diameter at the rear end and a smaller inner diameter at the front end. The piston has a passage in the piston and has a large outer diameter at the rear end and a smaller outer diameter at the front end.

REFERENCES:
patent: 3010156 (1961-11-01), Smith
patent: 3344477 (1967-10-01), Stokis
patent: 3590439 (1971-07-01), Swanson
patent: 4171941 (1979-10-01), Yotsutsuji

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