Patent ID: 6692639
Filing Date: 2004-02-17
Classification: B01D,Y10S

Abstract:
A stacked, conically shaped filter element including an uppermost tubular filter having an uppermost end cap, and a lowermost tubular filter having a lowermost end cap, said uppermost tubular filter and said lowermost tubular filter separated by at least one intermediate tubular filter, said uppermost tubular filter, said at least one intermediate filter and said lowermost tubular filter superimposed above each other, in order of decreasing diameter, in a fluid communicable relationship, wherein each of said at least one intermediate tubular filters has an upper and a lower end cap, the inner diameter of each of said intermediate tubular filters being less than the inner diameter of an adjacent lower tubular filter, and the outer diameter of each of said intermediate tubular filters being less than the outer diameter of said adjacent lower tubular filter, but greater than the inner diameter of said adjacent lower tubular filter, thereby forming a conically shaped filter element from a plurality of tubular filter elements of differing diameters superimposed one above the other.