Embossed membrane support

Liquid purification or separation – Casing divided by membrane into sections having inlet – Energy recovery from treated liquid

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Details

210494M, B01D 3100

Patent

active

040534189

ABSTRACT:
An elongated, flexible and embossed support member is disclosed herein for use in a coil-type artificial kidney dialyzer to support an elongated, flattened and tubularly shaped semipermeable membrane. The membrane is of cellophane or a cellulose derivative and has the characteristic of stretching further in the transverse direction than in the longitudinal direction. The support member includes an imperforate fluid-impermeable web having angle ribs on one side and skip ribs on the other side for positioning and supporting the membrane within the dialyzer. The angle ribs extend angularly from one longitudinal edge of the member to the other longitudinal edge and the skip ribs are arranged in longitudinal rows, with each row including a plurality of intermittently spaced skip ribs. The skip ribs are higher than the angle ribs and both sets of ribs are of a height effective to prevent the membrane from contacting the web.

REFERENCES:
patent: 3738813 (1973-06-01), Esmond
patent: 3753712 (1973-08-01), Janneck et al.
patent: 3963621 (1976-06-01), Newman

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