Importance

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Abstract

A replacement filter cartridge assembly includes a filter cartridge element and a reusable supporting core assembly. The filter cartridge element is cylindrical in shape and has top and bottom end caps. Either the top end cap or the bottom end cap has an opening formed through its thickness which communicates with a central bore extending longitudinally through the filter cartridge element. The supporting core assembly includes a perforated tubular core and a sealing end cap mounted on one end of the core. The core is inserted through the top or bottom end cap opening and into the central bore of the filter cartridge element. The sealing end cap rests against either the top or bottom end cap of the filter cartridge element, while the other end of the tubular core contacts the inner side of the opposite end cap of the cartridge element. The supporting core is removable from the filter cartridge element when the filter cartridge needs to be replaced or cleaned, and may be reused on a clean filter cartridge element.

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First Claim