Multi-layer filter cartridge

Details Multi-layer filter cartridge Multi-layer filter cartridge

1991-09-10

1993-06-01

Dawson, Robert A.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

21049701, 55500, 55502, 55520, B01D 2706

Patent

active

052156613

ABSTRACT:
The object of the present invention is to offer a general-purpose size filter cartridge for liquid filtration, which can extensively increase the service life for filtration. A depth type filter cartridge comprises a cylindrical hard porous core with threads wound thereupon, and it is characterized in that a sheet-like filter element is wound on said porous core directly or through a thread-winding layer, and a sheet-like filter element with a large number of pores is wound on said sheet-like filter element through a spacer.

REFERENCES:
patent: 3065856 (1962-11-01), Goldman
patent: 3504803 (1970-04-01), Brayman
patent: 4048075 (1977-09-01), Colvin et al.
patent: 4058464 (1977-11-01), Rogers
patent: 4187136 (1980-02-01), Nastrand
patent: 4660779 (1987-04-01), Nenesi

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