Spiral-wound filtration cartridge with longitudinal bypass featu

Details Spiral-wound filtration cartridge with longitudinal bypass featu Spiral-wound filtration cartridge with longitudinal bypass featu

1994-10-31

1996-02-13

Dawson, Robert A.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Each section having inlet

21032183, 2104971, 55498, 55500, 55520, 96 4, B01D 2706

Patent

active

054909260

ABSTRACT:
A spiral-wound filtration cartridge, which renders the need for brine seals unnecessary, is disclosed. The spiral cartridges of the invention comprise a spirally-wound inner filtration assembly having an impermeable outer cylindrical surface, a housing having a cylindrical cavity formed therein for receiving the inner filtration assembly, and at least one continuous longitudinally-oriented fluid pathway disposed between the inner filtration assembly and the housing, the fluid pathway allowing for a portion of a fluid entering one end of the filtration cartridge to bypass the inner filtration assembly and proceed to the other end of the filtration cartridge.

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patent: 5192437 (1993-03-01), Chang et al.
patent: 5352364 (1994-10-01), Kruger et al.
"Spiral Membrane Ultrafiltration Cartridges"; Amicon, Inc.; Technical Data Sheet; copyright date 1992; pp. 1-8.

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