Patent ID: 6391193
Filing Date: 2002-05-21
Classification: B01D,F01M,Y10S

Abstract:
A filter comprising tubular shaped first and second filter elements each having an annular end plate arranged on at least one end face thereof, the end plates of the first and second filter elements being connected together by way of a connecting piece to form a structural unit which can be installed in a filter housing;wherein the connecting piece comprises (i) a tubular portion extending through an aperture of one of said annular end plates, (ii) a circumferential bulge extending about an exterior circumferece of the tubular portion which engages an edge said one end plate to attach the first filter element to the connecting piece and, (iii) a plurality of detent cams extending from an end of said tubular portion which interlockingly engage an edge of an aperture of the other annular end plate to attach the second filter element to the connecting piece to form the structural unit.