Filter element with membrane-type filter material

Details Filter element with membrane-type filter material Filter element with membrane-type filter material

1989-06-02

1991-01-08

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Cylindrical membrane

210490, B01D 6912

Patent

active

049832883

ABSTRACT:
A filter element for a filter cartridge has an upstream or prefiltering membrane with frustoconical pores converging in the direction of liquid flow through the filter element and a final filtering membrane at the downstream side with cylindrical pores smaller than the smallest diameter of the frustoconical pores.

REFERENCES:
patent: 3158532 (1964-11-01), Pall et al.
patent: 3285421 (1966-11-01), McKewey, Jr. et al.
patent: 3353682 (1967-11-01), Pall et al.
patent: 4073732 (1978-02-01), Lauer et al.
Heiner Strathmann "Trennung von Molekularen Mischungen mit Hilfe Synthetischer Membranen", 1979.
Dytnerskij, "Membranprozesse zur Trennung Voflussiger Germische", 1977.

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