Multi-stage water filter system

Details Multi-stage water filter system Multi-stage water filter system

1997-11-06

1999-12-14

Lithgow, Thomas M.

Liquid purification or separation

With repair or assembling means

210 85, 210 87, 210 88, 210 89, 210266, 210282, 210288, 210256, 210259, 210335, 210339, 210501, 2105021, 2105101, B01D 1500, B01D 2708, C02F 128, C02F 900

Patent

active

060012498

ABSTRACT:
A water filter system having a housing for a plurality of serial-flow connected filter cartridges with distinct filtering characteristic related to the direction of flow of water being filtered. Each filter cartridge has a membrane wrapped activated carbon filter body. One of the filter bodies includes a heavy metal bacteriostat. The cartridges are each releasably retained in a manifold by keyed connectors including rotatable locking rings. Each cartridge having a distinct filtering characteristic includes a keying structure to ensure that the cartridge can only be connected to the manifold for placement in proper serial-flow relationship in the system. The filter system includes a spent filter cartridge indicator. The filter system is particularly suited for countertop placement and connection to a faucet.

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