DEPTH FILTER CARTRIDGE AND METHOD AND APPARATUS FOR MAKING SAME

摘要

A depth filter (59) formed of a plurality of substantially continuous intertwined filaments (51, 52) including a central support zone formed of support filaments (51) having a first diameter and a filter zone formed of filtration filaments (52) having filaments of a second diameter in which the diameters are different or the filaments are constructed of different materials. The invention also relates to an apparatus and a method for making such a depth filter element.