Patent ID: 7473360
Filing Date: 2009-01-06
Classification: B01D

Abstract:
1. A filter cartridge comprising a generally cylindrical filter body having an interior and a fluid-filtration media, and at least one length-adjustable end cap, wherein said end cap comprises a stationary ring member which is attached to an end of said filter body and includes an interior opening and an annular seal, a spacer coaxially positioned in spaced relationship with the seal, and a moveable connection member which includes a cylindrical neck portion and flange portion, wherein the spacer is joined to the stationary ring member around the interior opening and is positioned below the seal, wherein the cylindrical neck portion is slideably received within the interior opening of said stationary ring member and extends downwardly in moveable sealing contact within said seal and in a sliding fit within said spacer into the interior of the filter body, the cylindrical neck portion defining an opening which fluidly communicates with the interior of the filter body, and wherein the flange portion extends radially outwardly from the cylindrical neck portion to a radially outer region which includes a sealing arrangement, the flange portion being imperforate and having a larger outer diameter than the outer diameters of the cylindrical filter body and the stationary ring member.