Extrusion machine having collar for seal

Details Extrusion machine having collar for seal Extrusion machine having collar for seal

1975-07-28

1977-11-22

Reeves, Robert B.

Dispensing

With discharge assistant

Rotary

222564, 425311, B29F 304

Patent

active

040592065

ABSTRACT:
An extruder having a screw rotatable in a chamber provided with an annularly perforated end wall through which plastic material is extruded, the end of the screw being provided with a collar urged against the central portion of the wall to exclude the material therebetween.

REFERENCES:
patent: 2469999 (1949-05-01), Stober
patent: 2958099 (1960-11-01), Chisholm et al.
patent: 3000618 (1961-09-01), Oakes
patent: 3214796 (1965-11-01), Ginaven
patent: 3458902 (1969-08-01), Burns
patent: 3847531 (1974-11-01), McComb

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