Structure of filter members

Details Structure of filter members Structure of filter members

1974-06-05

1976-02-10

Hart, Charles N.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

55498, 55521, 210497R, B01D 2706

Patent

active

039376630

ABSTRACT:
A filter structure comprising a support and a porous folded sheet having a plurality of cooperating groups of corrugations, wherein the folds of one group overlap at least in part the folds of the adjacent group and have a uniform thickness, length and substantially parallel fold apex lines. On opposed sides, the folded sheet has at least two borders each of which borders has a single group of folds terminating in a frontal edge located in a plane substantially perpendicular to the apex lines of the folds. The borders extend outwardly of the cooperating groups of the corrugations to form an area for contact with the support wherein the borders may be embedded by seal means.

REFERENCES:
patent: 2627350 (1953-02-01), Wicks
patent: 2731108 (1956-01-01), Kennedy
patent: 2919765 (1960-01-01), Kasten
patent: 3013939 (1961-12-01), Casalone-Rinaldi
patent: 3022861 (1962-02-01), Harms
patent: 3087623 (1963-04-01), Gewiss
patent: 3290870 (1966-12-01), Jensen
patent: 3490211 (1970-01-01), Cartier
patent: 3712033 (1973-01-01), Gronholz

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