Rotary actuated gate valve

Details Rotary actuated gate valve Rotary actuated gate valve

1994-10-28

1996-03-19

Heitbrink, Tim

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, B29C 4523

Patent

active

054999162

ABSTRACT:
A rotary actuated gate valve for directing melt from a channel in a manifold to a mold gate includes a valve stem extending through and rotatable within the manifold. The valve stem includes a groove in fluid communication with the channel, wherein the groove is adapted to be rotated into alignment with the mold gate and channel for allowing the melt to flow into the mold gate. The groove is also adapted to be rotated out of alignment with the mold gate and channel for blocking the melt from flowing into the mold gate. The gate valve also includes a mechanism for rotating the valve stem. Another embodiment includes a rotatable housing having a groove, which operates in a manner similar to the valve stem design.

REFERENCES:
patent: 4784819 (1988-11-01), Spurr
patent: 4983117 (1991-01-01), von Buren et al.

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