Patent ID: 7922905

Claim:
A replaceable filter leaf apparatus for use in an associated filter system including a housing having a cavity with fluid inlet and outlet ports for conducting a flow of fluids into and out from the housing and having a manifold coupled to the outlet port, the filter leaf apparatus comprising: a filter envelope consisting of a single substantially rectangular porous filter media including a first pair of opposite first and second edges defining respective first and second peripheral regions, and a second pair of opposite third and fourth edges defining respective third and fourth peripheral regions, the porous filter media defining a first opening and being bent along a crease line extending between and dividing said third and fourth edges into respective first and second portions, wherein said first and second peripheral regions of the first and second edges are mutually connected, said first and second portions of the third peripheral region of the third edge are mutually connected, and said first and second portions of the fourth peripheral region of the fourth edge are mutually connected; a nozzle adapter member attached with said porous filter media by a connection selected from the group consisting of a stitch connection, a glue bond, a mechanical connection, and a weld bond, and defining an elongate passageway adjacent said first opening for conducting fluids therethrough in a first direction within the nozzle adapter member, the nozzle adapter member adapting the filter leaf apparatus for selective slidable connection with the manifold of the associated filter system in a second direction substantially perpendicular to the first direction, wherein a sealing portion of the nozzle adapter member is configured to generate a seal in a sealing plane between a margin surface surrounding an outlet of the elongate passage of the nozzle adapter member and the associated manifold by biasing the nozzle adapter member against the associated manifold along an axis substantially perpendicular to the sealing plane, wherein the passageway is elongated in the second direction; and, a grid member contained within said filter envelope.