Filter

Details Filter Filter

1974-06-24

1976-03-30

Hart, Charles N.

Liquid purification or separation

Filter

Movable medium

210402, 210406, 210410, B01D 3306

Patent

active

039473619

ABSTRACT:
The cylindrical filter surface of a drum filter is increased in effective area by providing radial inward and outward undulations in the general cylindrical shape instead of the cylindrical surface of the prior art.

REFERENCES:
patent: 1133944 (1915-03-01), Faber
patent: 1878998 (1932-09-01), Akins
patent: 2510254 (1950-06-01), Richter
patent: 2722315 (1955-11-01), Hapman
patent: 2725145 (1955-11-01), Mylius
patent: 3452874 (1969-07-01), Keller et al.
patent: 3500991 (1970-03-01), Vogt
patent: 3519137 (1970-07-01), Nilsson
patent: 3606735 (1971-09-01), Baigas, Jr.
patent: 3638797 (1972-02-01), Heckmann

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