Patent ID: 6368374
Filing Date: 2002-04-09
Classification: B01D

Abstract:
A filter arrangement comprising:(a) a filter assembly having opposite first and second ends, a first axial length between said first and second ends, and a plurality of flutes; (i) each of said flutes having a first end portion adjacent to said filter assembly first end, and a second end portion adjacent to said filter assembly second end; (A) selected ones of said flutes being open at said first end portion and closed at said second end portion; and selected ones of said flutes being closed at said first end portion and open at said second end portion; (b) a filter housing circumscribing said filter assembly; (i) said filter housing including an outer cylindrical wall having a central axis, a first housing end, a second housing end, and a transition area between said first housing end and said second housing end; (A) said first housing end being circular with a first radius; and said second housing end being circular with a second radius; (1) said first radius being larger than said second radius; (B) said transition area being angled relative to the central axis; and (c) a seal member circumscribing said filter assembly; (i) said seal member being compressed between and against said transition area of said housing and an outer radial portion of said filter assembly to form a seal between said housing and said filter assembly.