Filter device

Details Filter device Filter device

1982-12-09

1984-09-04

Lacey, David

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210491, 210492, 210DIG10, 55486, B01D 2504

Patent

active

044695985

ABSTRACT:
A filter device is provided with a multi-layer filter which includes a central highly absorbent layer which expands in the presence of moisture and positioned between an outer layer of absorbent paper and an inner layer of fiber glass adjacent to an inner ply. The filter is longitudinally pleated.

REFERENCES:
patent: 2341414 (1944-02-01), Polivka
patent: 2554814 (1951-05-01), Catlin et al.
patent: 4117184 (1978-09-01), Erickson
patent: 4145285 (1979-03-01), Martin et al.
patent: 4242206 (1980-12-01), Estabrooke
patent: 4286977 (1981-09-01), Klein
patent: 4324574 (1982-04-01), Fagan

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