Filter media configuration

Details Filter media configuration Filter media configuration

1997-10-03

1999-04-27

Reifsnyder, David A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210495, 21049701, 55511, B01P 2706, B01P 4652

Patent

active

058977767

ABSTRACT:
An air filter has a filter media with a central portion and a boundary portion, the central portion having a greater density of filter area than the boundary portion. In one embodiment, this is accomplish by having more pleats in the central portion than the boundary portion and, in another embodiment, this is accomplished by having higher pleat amplitudes in the central portion than in the boundary portion.

REFERENCES:
patent: 2205706 (1940-06-01), Wolff
patent: 3021776 (1962-02-01), Kennedy
patent: 3022862 (1962-02-01), Harms
patent: 3251177 (1966-05-01), Baker
patent: 3938973 (1976-02-01), Kershaw
patent: 4422861 (1983-12-01), Dusza
patent: 5178760 (1993-01-01), Solberg, Jr.
patent: 5222488 (1993-06-01), Forsgren
patent: 5632793 (1997-05-01), Haggard

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