Patent ID: 6248237
Filing Date: 2001-06-19
Classification: B01D

Abstract:
An apparatus comprising: a filter cartridge mounted in a liquid drainage conduit that is removable from the conduit through an opening in a wall of said conduit, including a hood to close the opening and a pouch in which the filter cartridge is engaged when it is removed from the conduit, the pouch having a first end attached to the hood and a second open end removably attached to a rim of the opening and being folded when the cartridge is inserted in the conduit and deployable during removal of the cartridge, a length of the pouch being greater than a length of the cartridge in a direction of the cartridge's removal motion, wherein the hood includes two removable and attachable parts comprising a first upper main hood part that is joined to the filter cartridge and houses said pouch in a folded state at a bottom of said first hollow upper main hood part, and a second hood part to which the second open end of the pouch is attached, wherein said second hood part is removably secured to the rim of the opening by removable fastening means.