Importance

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Abstract

An end-of-life indicator comprising a housing having a chamber therein and attachable to the water treatment device, a diaphragm disposed within the chamber, a rotatable cap having indicia disposed thereon adapted to cooperate with the housing, a spring device for rotating the cap with respect to the housing, an escapement device for regulating the rotational displacement of the cap and means for resetting the cap to a start position. The chamber is arranged for the ingress of water into the water treatment device to pressurize the chamber and the egress of water from the water treatment device to depressurize the chamber, the ingress and egress of water defining one fill cycle. The diaphragm is arranged to be moved by the pressurizing and depressurizing of the chamber. The escapement device are arranged to cooperate with the diaphragm and the spring device whereby predetermined incremental rotation of the cap is provided during each of the fill cycles.

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First Claim