Variable profile extrusion apparatus

Details Variable profile extrusion apparatus Variable profile extrusion apparatus

1977-07-05

1980-02-05

Rosenbaum, Mark

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Centripetal elastic melt extruder type

425465, 425466, B29F 304

Patent

active

041870689

ABSTRACT:
An improved method and apparatus is described for varying the profile as seen in cross section of an elongated extrudate article. The method and apparatus provides for varying the profile of an extrusion orifice while an extrudate stock material is being forced through the orifice. An elongated extruded article is formed having a varying profile conforming to the variations in the profile of the extrusion orifice.

REFERENCES:
patent: 2044961 (1936-06-01), Waner
patent: 3093860 (1963-06-01), Eilersen
patent: 3422648 (1969-01-01), Lemelson

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