Filter element and spiral-wound membrane cartridge containing same
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United States of America Patent
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May 19, 1992
Grant Date -
N/A
app pub date -
Apr 12, 1991
filing date -
Apr 12, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved spiral membrane cartridge is provided, comprising one or more filter elements, spirally wound on a cylindrical permeate transport tube. Each filter element comprises a heat-sealed membrane element and a feed spacer. The spiral membrane cartridge of the invention contains no adhesives, improving the reliability and durability of the cartridge. The invention further provides a method for making such an improved membrane cartridge, and the membrane elements used therein.
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