Method of making a tubular cylinder for extruding a product

Metal tools and implements – making – Blank or process

Patent

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Details

228160, B21K 2100

Patent

active

044135378

ABSTRACT:
A tubular cylinder for use with other components and in which the wall of the cylinder is of a composite character made into a unitary structure and provided with a multitude of substantially radial holes in its periphery and a predetermined amount of a cylindrical surface of the wall is preferably cut away to fully open the holes whereby to provide passages through which a material to be processed and under pressure in the cylinder can be forced or extruded outwardly through the passages and thereby condition the material for its intended use.

REFERENCES:
patent: 3803951 (1974-04-01), Borgley
patent: 3864182 (1975-02-01), Shobert
patent: 4033204 (1977-07-01), Salakradze
patent: 4378294 (1983-03-01), Wagner

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