Equipment for purification and sterilization of swimming pool waters

Claim 1

APPARATUS FOR PURIFYING, STERILIZING AND OXYGENATING WATER IN A CONTINUOUSLY CIRCULATING SWIMMING POOL SYSTEM, COMPRISING IN SERIES COAGULATING MEANS FOR COAGULATING IMPURITIES CONTAINED IN THE WATER, SAID COAGULATING MEANS INCLUDING A CONTAINER HAVING AN INLET AND AN OUTLET CONNECTED WITH SAID SYSTEM, A PLURALITY OF FLAT ELECTRODES ARRANGED IN SAID CONTAINER PARALLEL WITH THE FLOW OF WATER BETWEEN SAID INLET AND OUTLET, AND MEANS SUPPLYING A LOW-VOLTAGE PULSATING DIRECT CURRENT TO SAID ELECTRODES; CENTRIFUGING MEANS FOR SEPARATING FROM THE WATER THE FLOCCULATE PRODUCED BY SAID COAGULATING MEANS, SAID CENTRIFUGING MEANS INCLUDING TOP, BOTTOM AND CYLINDRICAL SIDE WALLS COOPERATING TO DEFINE A CHAMBER, SAID CYLINDRICAL WALL HAVING A VERTICAL AXIS, AND MEANS CONNECTED WITH SAID COAGULATING MEANS FOR INTRODUCING THE ELECTRICALLY TREATED WATER TANGENTIALLY INTO SAID CHAMBER, SAID BOTTOM WALL CONTAINING A CENTRAL OUTLET; FILTER MEANS ARRANGED BELOW AND IN COMMUNICATION WITH THE OUTLET OF SAID CENTRIFUGING MEANS FOR FILTERING IMPURITIES FROM THE WATER; STERILIZING MEANS CONNECTED TO RECEIVE THE FILTERED WATER FROM SAID FILTER MEANS AND OPERABLE TO ADD SILVER IONS THERETO, SAID STERILIZING MEANS INCLUDING AT LEAST ONE SILVER ANODE, AND MEANS FOR SUPPLYING LOW-VOLTAGE PULSATING DIRECT CURRENT TO SAID SILVER ANODE; AND STATIC AIR MIXING MEANS CONNECTED WITH SAID STERILIZING MEANS FOR OXIDIZING THE IONIZED FILTERED WATER AND FOR DISCHARGING THE SAME INTO SAID SWIMMING POOL.