Extruded plastic foam shaping apparatus

Details Extruded plastic foam shaping apparatus Extruded plastic foam shaping apparatus

1980-01-07

1981-09-29

Anderson, Philip

Plastic article or earthenware shaping or treating: apparatus

Diverse distinct type shaping means

Shaping orifice and either a downstream preform reshaping...

264 53, 264177R, 425466, B29D 2700

Patent

active

042920191

ABSTRACT:
Forming plates for the extrusion of foam from a slot die are provided which are adjustable in relationship to a generally adjacent die face. A movable plate portion is disposed adjacent the die face. The movable portion has a semi-cylindrical groove disposed therein. A pivoting forming plate having half-round edges has one edge disposed within the movable plate. The opposed half-round edge of the pivoting plate rests in a semi-cylindrical groove within a fixed forming plate. A similar opposed plate arrangement is employed on the opposite side of the die slot.

REFERENCES:
patent: 2740157 (1956-04-01), McCurdy et al.
patent: 3431163 (1969-03-01), Gilbert
patent: 3431164 (1969-03-01), Gilbert
patent: 3871812 (1975-03-01), Phipps
patent: 3897528 (1975-07-01), Suh
patent: 3914085 (1975-10-01), Kruelskie
patent: 3920876 (1975-11-01), Albert et al.
patent: 4154785 (1979-05-01), Inui et al.
patent: 4201534 (1980-05-01), Phipps

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