Layered filter cartridge with internal bypass channels

Details Layered filter cartridge with internal bypass channels Layered filter cartridge with internal bypass channels

1980-01-25

1981-06-02

Cintins, Ivars C.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210489, 2104932, B01D 2906

Patent

active

042710251

ABSTRACT:
A filter cartridge for a liquid-straining filter assembly designed for a radial flow-through, the cartridge having a coiled filter body which surrounds a perforated central sleeve and is axially confined between end discs, the coiled filter body consisting of overlying layers of two axially offset strips of creped filter paper, the protruding spiral edges of the two coiled strips being glued to the end discs, while the recessed opposite edges form bypass flow gaps interconnecting the axial channel portions between the creped paper layers to form a zigzag-shaped transverse flow channel for depth-filtering action, when the entry layers of the cartridge become clogged.

REFERENCES:
patent: 3037637 (1962-06-01), Bub
patent: 3720323 (1973-03-01), Landree

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