Filtering device

Liquid purification or separation – Filter – Within flow line or flow line connected close casing

Reexamination Certificate

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Details

C210S450000, C210S455000, C210S494100, C210S497010

Reexamination Certificate

active

07380676

ABSTRACT:
A filtering device (10) comprises a plurality of layers of paper (40). The paper (40) is formed with projections (120)) so that cavities (122) are located between adjacent layers of paper (40). A liquid being filtered passes between adjacent layers, filling at least some of the cavities (122).

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patent: 2000 354713 (2000-12-01), None
patent: WO 97/40910 (1997-11-01), None

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