| 摘要 |
APPARATUS FOR PURIFYING WATER, COMPRISING IN COMBINATION WITH SUPPORTING HOUSING (110) AND WITH POWER MEANS, AN UNPURIFIED WATER FEED INLET (23, 32) AND A PURIFIED WATER DISPENSE OUTLET (77, 78), AN INTERCHANGEABLE FILTER (50) HAVING DEPTH FILTER LAYERS (91,91') AND MICROPOROUS MEMBRANE MEANS (92, 92') INTERPOSED BETWEEN SAID INLET AND SAID OUTLET, MEANS (76) FOR DRIVING THE WATER THROUGH THE FILTER, MEANS (99) FOR COUNTING THE TIME PASSED FROM THE INSTALLATION OF THE FILTER, MEANS (99) FOR MONITORING, WITH A DESIRED ACCURACY, THE VOLUME OF WATER WHICH HAS FLOWED THROUGH THE FILTER, AND CONSTANT FLOW AND USAGE CONTROLLING DEVICE FOR ALERTING THE USER WHEN THE DATA ACQUIRED BY SAID COUNTING AND/OR SAID MONITORING MEANS HAVE REACHED CORRESPONDING THRESHOLD VALUES OR ANY ONE OF A PLURALITY OF SUCCESSIVELY INCREASING, PREDETERMINED THRESHOLD VALUES; AND PREFERABLY, MEANS FOR AUTOMATICALLY PREVENTING THE FLOW OF WATER THROUGH THE FILTER WHEN THE DATA ACQUIRED BY SAID COUNTING AND/ OR SAID MONITORING MEANS HAVE REACHED THE CORRESPONDING THRESHOLD VALUE OR THE HIGHEST OF SAID PLURALITY OF THE CORRESPONDING THRESHOLD VALUES.
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