Patent ID: 7416663
Filing Date: 2008-08-26
Classification: B01D

Abstract:
1. A replacement filter cartridge assembly removably rotatably attachable to a mating adaptor of a filtering apparatus, the mating adaptor having a main body and at least one prong extending outwardly from the main body, the replacement filter cartridge assembly comprising: a first end cap; a second end cap disposed axially opposite the first end cap, the second end cap having a central opening formed through the thickness thereof and further having at least one notched portion defining a notch situated at the periphery of the central opening for receiving the at least one prong of the adaptor; a perforated elongated core extending axially between the first and second end caps, the core having a first axial end situated in proximity to the first end cap and a second axial end situated in proximity to the second end cap; a pleated filter medium situated between the first and second end caps and disposed circumferentially about the core; and an internal lock ring, the internal lock ring being situated on the core at the second axial end thereof, the internal lock ring having a surface engageable with the at least one prong of the adaptor to removably secure the replacement filter cartridge assembly to the adaptor.