Sealing arrangement for an extrusion apparatus

Details Sealing arrangement for an extrusion apparatus Sealing arrangement for an extrusion apparatus

1974-11-13

1976-08-24

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

259DIG16, 264176R, 425208, 425466, A23C 106

Patent

active

039762858

ABSTRACT:
In a method and apparatus for the extrusion of thermoplastic resinous materials and in particular coarse granular resinous materials which contain admixed therewith fine, powdery additives, a seal is provided for the extrusion apparatus to prevent escape or leakage therefrom of the fine powdery additive material admixed with the coarser granular resin.

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patent: 1504901 (1924-08-01), Rogers
patent: 2283348 (1942-05-01), Adams et al.
patent: 2302578 (1942-11-01), Ferrell
patent: 2362436 (1944-11-01), Strafford
patent: 3450392 (1969-06-01), Viareat
patent: 3659862 (1972-05-01), Sebestian
patent: 3700247 (1972-10-01), Butler et al.
patent: 3738618 (1973-06-01), Hehl
patent: 3752489 (1973-08-01), Latinen
patent: 3811658 (1974-05-01), Heidrich
patent: 3821129 (1974-06-01), Johnson

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