Filter cartridge with drainable sludge barrier

Details Filter cartridge with drainable sludge barrier Filter cartridge with drainable sludge barrier

1998-09-18

2000-05-16

Simmons, David A.

Liquid purification or separation

Diverse distinct separators

Including a filter

210232, 210237, 210338, 210439, 210457, 210460, 210470, B01D 2958

Patent

active

060632763

ABSTRACT:
This invention relates generally to filters for removing impurities from liquids, and more particularly to a replaceable filter cartridge having a barrier for preventing contaminants from draining from a spent cartridge, as it is being replaced. The barrier comprises a layer of filter media closely surrounding an inner perforated conducting conduit.

REFERENCES:
patent: 2654483 (1953-10-01), Ahlijian
patent: 3145170 (1964-08-01), Baldwin et al.
patent: 3189179 (1965-06-01), McMichael
patent: 3219191 (1965-11-01), Suchy
patent: 3487940 (1970-01-01), Morris
patent: 3493117 (1970-02-01), Tuffnell et al.
patent: 3504800 (1970-04-01), Niebergall et al.
patent: 5152890 (1992-10-01), Linnersten
patent: 5180489 (1993-01-01), Bourgeois
patent: 5298160 (1994-03-01), Ayers et al.
patent: 5458767 (1995-10-01), Stone

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