Patent ID: 6761270
Filing Date: 2004-07-13
Classification: A01K,B01D

Abstract:
A filter assembly for filtering a fluid, said assembly comprising:a plurality of wave coils arranged axially to define a filter element having first and second ends and an inner cavity; a support engaging one of said first and second ends for supporting said wave coils and for diverting the fluid inside or outside said inner cavity of said filter element; each of said wave coils including at least one crest and at least one trough with said at least one crest of one wave coil engaging said at least one trough of an adjacent wave coil to define at least one filtration aperture between each crest and each trough of adjacent wave coils for filtering the fluid diverted by said support; a base plate engaging one of said first and second ends of said filter element; and a flange member engaging the other of said first and second ends relative to said base plate, said flange member being adjustably engaged relative to said base plate for modifying a length L, extending between said first and second ends of said filter element, to reduce and expand said at least one filtration aperture; wherein said flange member comprises a flange collar and a yoke extending from said collar toward said base plate thereby defining a shoulder portion of said flange member between said flange collar and said yoke, said shoulder portion of said flange member supporting the other of said first and second ends of said filter element relative to said base plate.