Adaptor for extruding a plurality of streams of synthetic thermoplastic foam simultaneously from a single extruder
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United States of America Patent
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-
Jul 26, 1983
Grant Date -
N/A
app pub date -
Dec 10, 1981
filing date -
Dec 19, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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