Patent ID: 7314555
Filing Date: 2008-01-01
Classification: B01D

Abstract:
1. A filter cartridge comprising: a filter media having a top end and a bottom end; a top end cap mounted at the top end of the filter media; a bottom end cap mounted at the bottom end of the filter media, the bottom end cap including a bottom wall and a side wall, the side wall extending upwardly from the bottom wall and surrounding at least a lower portion of the filter media, the side wall having a top end; a circumferential sealing element that projects radially outwardly from the side wall at a location adjacent the top end of the side wall; and a circumferential living hinge defined by the side wall at a location below the circumferential sealing element, wherein the living hinge is formed by a ring of reduced cross sectional thickness provided at the side wall, the ring of reduced cross sectional thickness being provided by a circumferential notch defined within the side wall below the circumferential sealing element, the circumferential notch having an open side that faces in a radial direction relative to a central axis of the filter cartridge.