Variable profile extrusion method

Details Variable profile extrusion method Variable profile extrusion method

1978-11-24

1981-03-17

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Of varying cross-sectional area or with intermittent...

264177R, B29F 304

Patent

active

042566851

ABSTRACT:
An improved method is described for varying the profile as seen in cross section of an elongated extrudate article. The method 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: 2365482 (1944-12-01), Manken et al.
patent: 2392336 (1946-01-01), Nissen
patent: 2793598 (1957-05-01), Rivoche
patent: 3021003 (1962-02-01), Bluck
patent: 3871812 (1975-03-01), Phipps
patent: 3914085 (1975-10-01), Kruelskie
patent: 3932090 (1976-01-01), Brumlik

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