Filter cartridge having a tunable asymmetric fluoropolymer alloy filter membrane
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United States of America Patent
Stats
-
Dec 26, 1989
Grant Date -
N/A
app pub date -
Nov 17, 1988
filing date -
Nov 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter cartridge having a tubular, self-supporting, tunable, asymmetric, fluoropolymer alloy filter membrane is provided. Within a sealed cartridge assembly, the tubular filter membrane is connected at opposite ends to inlet and outlet tubes which pass through opposite ends of the cartridge assembly. A guide attached to the end of the inlet tube within the sealed cartridge assembly plugs the end of the inlet tube within the sealed cartridge assembly and provides a filter medium passage from the inside of the inlet tube to the outside of the tubular filter membrane. The outlet tube provides a filter medium passage from the inside of the tubular filter membrane. The input and output tubes are slideably disposed in the ends of the cartridge assembly such that the axial length and therefore the porosity of tubular filter membrane can be adjusted over a range.
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