Flow distribution valve for dual thermoplastic tube extrusion

Details Flow distribution valve for dual thermoplastic tube extrusion Flow distribution valve for dual thermoplastic tube extrusion

1976-12-23

1978-03-28

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Single inlet, plural shaping orifices

137872, 13762548, 251319, 425382R, B29F 306

Patent

active

040812316

ABSTRACT:
In a thermoplastic extrusion system where a single extruder feeds molten polymer through a manifold to a plurality of separate extrusion orifices, a valve is provided which distributes and regulates the flow of the molten polymer to the individual extrusion orifices.

REFERENCES:
patent: 3355763 (1967-12-01), Willert
patent: 3468340 (1969-09-01), DiCamillo
patent: 3901636 (1975-08-01), Zink et al.

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