Patent ID: 6348085
Filing Date: 2002-02-19
Classification: B01D

Abstract:
A filter arrangement comprising:(a) a first filter element having opposite first and second ends; an 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 first filter element first end, and a second end portion adjacent to said first filter element 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 sleeve member secured to and circumscribing said first filter element; (i) said sleeve member being oriented relative said first filter element to extend at least 30% of said axial length of said first filter element; (c) a seal member pressure flange extending radially from said sleeve member and fully circumscribing said sleeve member; (i) said seal member pressure flange including first and second opposite axial surfaces; and (d) a seal member secured to said first axial surface of said seal member pressure flange and circumscribing said sleeve member; (i) said seal member being a circular gasket member.