Filter leaf

Details Filter leaf Filter leaf

1986-01-31

1990-11-06

Fisher, Richard V.

Liquid purification or separation

Plural distinct separators

Filters

210486, 55492, B01D 2915

Patent

active

049684230

ABSTRACT:
A filter leaf having a drainage member which is fabricated by combining a plurality of preforated and texturized sheets into a sandwich structure. The drainage member is covered in both sides by a pair of surface screens, and the entire assembly is secured together by a suitable frame.

REFERENCES:
patent: 2249063 (1941-07-01), Swem
patent: 2409705 (1946-10-01), Reinhardt
patent: 2902165 (1959-09-01), Imershein
patent: 3262577 (1966-07-01), Tuit
patent: 3270888 (1966-09-01), Anderson
patent: 3283906 (1966-11-01), Crane et al.
patent: 3315336 (1967-04-01), Parker et al.
patent: 3669267 (1972-06-01), Hutton
patent: 3679062 (1972-07-01), Burkhardt
patent: 3948779 (1976-04-01), Jackson
patent: 4022695 (1977-05-01), Howard et al.
Random House College Dictionary, revised edition 1980, pp. 580 and 1359.

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