Screening device

Details Screening device Screening device

1973-08-23

1976-02-17

Halper, Robert

Classifying, separating, and assorting solids

Sifting

Feeding and discharging

209270, 209304, 209399, 210377, B07B 122

Patent

active

039390659

ABSTRACT:
A treatment chamber for purification and fractionation of materials suspensions, particularly fibrous suspensions under pressure, and wherein the treatment chamber includes a rotary screening drum provided with pulsation members, the drum also including screening holes located on the back-side of, or immediately behind, the pulsation members as viewed in the direction of drum rotation.

REFERENCES:
patent: 299684 (1884-06-01), Scharbaw
patent: 983495 (1911-02-01), Hunnicutt
patent: 1228277 (1917-05-01), Wright
patent: 1540917 (1925-06-01), Appel
patent: 2028168 (1936-01-01), Roberts
patent: 2038931 (1936-04-01), Goldberg
patent: 2311813 (1943-02-01), Beck
patent: 3363759 (1968-01-01), Clarke-Pounder
patent: 3458038 (1969-07-01), Young
patent: 3586172 (1971-06-01), Young

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