Apparatus for extruding thermoplastic material

Details Apparatus for extruding thermoplastic material Apparatus for extruding thermoplastic material

1975-06-16

1977-12-06

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Single inlet, plural shaping orifices

425378R, 425382R, B29F 300

Patent

active

040614620

ABSTRACT:
This invention relates to a process for extruding particular shapes in thermoplastic material and, more precisely, flat plates, corrugated plates and the like or, in general, shapes having one section much larger than the other; said process being suited to eliminate the uneven feed of the molten material coming out from a die. This invention relates also to an improved extrusion machine which is particularly useful for carrying out the aforementioned process.

REFERENCES:
patent: 2291212 (1942-07-01), Clinefelter
patent: 2766479 (1956-10-01), Henning
patent: 2792122 (1957-05-01), Munch et al.
patent: 2821745 (1958-02-01), Patton
patent: 3601846 (1971-08-01), Hudnall

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