초록 ▼

A faucet mounted water filter is described, comprising a base having a water inlet upstanding from a first end of the base and attachable to a water faucet, a first water outlet downwardly directed from the first end of the base for discharging unfiltered water, a second water outlet downwardly dire

A faucet mounted water filter is described, comprising a base having a water inlet upstanding from a first end of the base and attachable to a water faucet, a first water outlet downwardly directed from the first end of the base for discharging unfiltered water, a second water outlet downwardly directed from a second end of the base for discharging filtered water and a filter cartridge seat disposed on the second end of the base, a replaceable filter cartridge comprising a unitary subassembly including a closed outer cylindrical shell having top and side walls defining a chamber therein, a filter element disposed with the filter chamber and a filter cartridge base, latch means for demountably securing the filter cartridge in the housing cartridge seat, a diverter valve for selectively permitting the flow of water through the housing first water outlet and the filter cartridge, and an end-of-use indicator for determining the status of the filter element during use.

대표청구항 ▼

[ What is claimed is:] [1.] A water filter apparatus, comprising:a base having first and second ends;said base including a water inlet upstanding from a first end of said base and attachable to a water faucet, a first water outlet downwardly directed from said first end of said base for discharging

[ What is claimed is:] [1.] A water filter apparatus, comprising:a base having first and second ends;said base including a water inlet upstanding from a first end of said base and attachable to a water faucet, a first water outlet downwardly directed from said first end of said base for discharging unfiltered water, a second water outlet downwardly directed from a second end of said base for discharging filtered water and a filter cartridge seat;a replaceable filter cartridge, said cartridge comprising a subassembly including a closed outer cylindrical shell having top and side walls defining a chamber therein, a filter element disposed within said filter chamber and a filter cartridge base, said filter base including an outlet port in communication with said base second water outlet, said filter cartridge base including a reset pin;a diverter valve having an outlet duct, in communication with said water inlet, for selectively permitting the flow of water through said base first water outlet and said filter cartridge;latch means for releasably securing said cartridge in said cartridge seat; andan end-of-use indicator in communication with said diverter valve and said filter cartridge, said indicator including flow monitoring means for monitoring the volume of water flow into said filter cartridge, processing means responsive to said monitoring means for recording the total volume of water flow into said filter cartridge and the time of use of said filter cartridge, and signaling means responsive to said processing means for providing at least first and second output signals, said processing means being programmed to provide outputs indicative (i) that a first cumulative volume of water flow into said filter cartridge has occurred, is imminent and is non-imminent and (ii) that a first cumulative time of use of said filter cartridge has occurred, is imminent and is non-imminent, said end-of-use indicator including a reset switch and cartridge volume switch, said reset switch being adapted to communicate with and be positioned to a first initializing position by said reset pin upon said filter cartridge being releasably secured in said cartridge seat by said latch means.