Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – Removable cartridge or hand-manipulated container
Patent
1992-05-05
1993-12-14
Dawson, Robert A.
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
Removable cartridge or hand-manipulated container
2104932, 2104934, 2104971, 55487, 55498, 55520, B01D 2706
Patent
active
052699218
ABSTRACT:
A filter cartridge with a filter element inserted in a receiving space formed by a central cylindrical flow pipe 32 and a peripheral wall 34 is in terms of its possibilities of use and possibilities of adaptation to filtration problems substantially improved in that the filter element consists of fleece-like filter material and in that in its radial direction it comprises mutually enclosing zones of different filtering properties. For practical purposes, these zones can follow one another without any transition or they may be constructed with filtering properties which are varied in stepwise fashion. The filter element can be formed by the combination of a pleated filter fleece with a rolled-up filter fleece, the pleated part of the filter element being optionally on the inside or the outside. A rolled-up filter element or the rolled-up part of a filter element may be produced from a strip of fleece-like filter material, the said strip possibly having filtering properties which over its length are varied continuously or from portion to portion.
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Karbachsch Massoud
Ruger Helmut
Dawson Robert A.
Lehmann H. Gibner
Lehmann K. Gibner
Seitz-Filter-Werke GmbH & Co.
Walker W. L.
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