Adaptor for extruding a plurality of streams of synthetic thermo

Details Adaptor for extruding a plurality of streams of synthetic thermo Adaptor for extruding a plurality of streams of synthetic thermo

1981-12-10

1983-07-26

Anderson, Philip E.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Plural orifices

264 53, 425378R, 425464, 425817C, B29D 2700, B29F 304

Patent

active

043952178

ABSTRACT:
The adaptor, which can be applied to the delivery end of the extruder barrel, comprises a plurality of ducts for feeding corresponding extrusion heads, radiating from a common manifold chamber and each provided with a butterfly valve for the mutual adjustment of the flows of thermoplastic material in the respective ducts. Preferably the ducts with their respective valves are identical to each other and the valves are adjusted to give extruded products which are identical to each other.

REFERENCES:
patent: 3038202 (1962-06-01), Harkenrider
patent: 3416190 (1968-12-01), Mehnert
patent: 3702226 (1972-11-01), Kim et al.
patent: 3901636 (1975-08-01), Zink et al.
patent: 4076477 (1978-02-01), Hacke
patent: 4276250 (1981-06-01), Satchell et al.

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