Patent ID: 7300483

Claim:
A fluid filtration assembly comprising a selected number of filtration modules, each of said modules comprising a planar filter unit and first and second housing members connected together to form an open-sided recess receiving said filter unit edge-wise of said filter unit, each of said housing members being provided with a collection chamber having first and second opening structures aligned with each other, and a wall portion extending outwardly from the chamber and defining one wall of the recess when said housing members are connected together, the one wall being spaced from said filter unit, wherein one of the first and second opening structures are each configured to serve as a fluid inlet, the walls permitting fluid flow therebetween and through said filter unit, the other of the first and second openings structures each being configured to serve as a fluid outlet; wherein said filtration module housing members are of substantially L-shaped configuration and are connected to each other by interconnection of pairs of the opening structures in reversed, head-to-tail configuration, to form the recess which is configured to receive said filter unit to form one of the filtration modules; and said one filtration module is configured for connection to and release from at least one additional filtration module by interconnection of selected ones of the opening structures to change capacity of the filtration assembly.