초록 ▼

A faucet mounted water filtration device (100) includes an end of life indicator assembly (130) having a flow totalization mechanism (600), a reset mechanism (602) and a flow restriction mechanism (604) coaxially aligned with an indicator assembly (130). A torsion spring (634) and compression spring

A faucet mounted water filtration device (100) includes an end of life indicator assembly (130) having a flow totalization mechanism (600), a reset mechanism (602) and a flow restriction mechanism (604) coaxially aligned with an indicator assembly (130). A torsion spring (634) and compression spring (644) cooperate for automatic disengagement and resetting of the flow totalization mechanism and the flow restriction mechanism. A planetary gear reduction system 606 provides a 3,000,000:1 gear reduction in the flow totalization mechanism.

대표청구항 ▼

[ We claim:] [1.] A water treatment device comprising:a housing includingmeans for mounting said housing on a water faucet,an inlet,an outlet, andstructure defining a flow pathway internal to said housing, said flow pathway connecting said inlet with said outlet, said flow pathway containinga cartri

[ We claim:] [1.] A water treatment device comprising:a housing includingmeans for mounting said housing on a water faucet,an inlet,an outlet, andstructure defining a flow pathway internal to said housing, said flow pathway connecting said inlet with said outlet, said flow pathway containinga cartridge providing means for treating water flowing through said flow pathway and said cartridge,said cartridge containing sufficient treatment material to treat a predetermined amount of water;means for totalizing a quantity of water treated by said cartridge and for providing a visual indication of said quantity of water,means responsive to mechanical action from said totalizing means for restricting said flow pathway to reduce a first rate of waterflow through said pathway to a second rate ranging from five to fifty percent of said first rate when said predetermined amount of water equals said quantity of water, anda central rod supporting said water totalization means, said visual indication means, and said restricting means.