Life indicator and cartridge for indicating total water flow
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United States of America Patent
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-
Oct 17, 1995
Grant Date -
N/A
app pub date -
Sep 8, 1993
filing date -
Sep 14, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A life indicator is so designed that an electric current flows to a light emitting diode utilizing a battery as a power source when two electrodes are electrically connected. The two electrodes are so installed as to be electrically connected by passing water through a water passage communicating with an objective equipment, and the discharge life of the battery is set equal to the service life of the equipment.
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