Wave screen plate

Details Wave screen plate Wave screen plate

1990-04-16

1991-08-20

Hajec, Donald T.

Classifying, separating, and assorting solids

Sifting

With liquid treatment

209397, 209399, 209411, B07B 146

Patent

active

050412140

ABSTRACT:
A paper pulp screening apparatus wherein a modular cylindrically-shaped screen plate is formed of a thin material of uniform thickness bent to form an undulating shape to increase the screening area, and the screen plate is supported by cylindrical-backing members to give the plate strength, with the plate being formed into various complex shapes. Manufacturing methods for forming the undulating shapes are disclosed.

REFERENCES:
patent: 520571 (1894-05-01), Phillips
patent: 1082855 (1913-12-01), Dull
patent: 2246669 (1941-06-01), Cowan
patent: 2311813 (1939-08-01), Beck et al.
patent: 2617600 (1952-11-01), Cole
patent: 2827169 (1954-12-01), Cusi
patent: 2913114 (1959-11-01), Plaven
patent: 3339731 (1964-04-01), Merges et al.
patent: 3581893 (1971-06-01), Rich
patent: 3928188 (1975-12-01), Link et al.
patent: 4202759 (1980-05-01), Krolopp et al.

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