Liquid purification or separation – Casing divided by membrane into sections having inlet – Coiled membrane
Patent
1988-11-30
1990-03-27
Fisher, Richard V.
Liquid purification or separation
Casing divided by membrane into sections having inlet
Coiled membrane
210437, 210449, 210450, 210451, B01D 1300
Patent
active
049118404
ABSTRACT:
A portable water treatment apparatus utilizing a cylindrical filter module having a spirally wound semipermeable membrane assembly includes interior upper and lower O-ring seals and an outer brine seal, all of which may be assembled without any potentially damaging movement between the seals and the respective interfacing surfaces in contact with the seals. Each of the O-ring seals is disposed between an annular shoulder on one interfacing part and a frustoconical surface on the other part such that a sealing compression is the only movement imposed on the O-ring. The brine seal, comprising a strip of adhesive-coated tape, is attached after the filter module has been placed in the housing such that it is in its final sealing position and is undisturbed by any subsequent assembly step.
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Ametek, Inc. - Plymouth Products Division
Fisher Richard V.
Nessler Cynthia L.
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