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US 4,902,411 AGranted
Drinking water purifier
OwnerFrank W. G. Lininventor
Life of this patent
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Abstract
A water purifier to purify drinkable water, comprising a packed filter chamber, jet type oxygen dissolution chamber, UV lamp sterilization chamber, water circulation and drainage structure, water supply structure and a control circuit. Such an arrangement removes high polymer hydrocarbon pollutants, low polymer trihalo-methane pollutants, and other soluble or insoluble pollutants such as mineral substances, metal salts or other impurities in the water.
Claims8
A water purifier system comprising:
- an upstanding water tank;
- a water filtration unit located alongside said water tank;
- an air-water contact means located directly above said water tank;
- an ultraviolet lamp means located within said tank;
- means for circulating water from the tank through the filtration unit, air-water contact means, and back into the tank;
- said circulating means comprising a motor-operated pump, and a conduit extending from the filtration unit to the air-water contact means;
- means for introducing make-up water to the purifier system, comprising a solenoid valve;
- means for withdrawing purified water from the system comprising a diverter valve located in said conduit;
- and
- control means for continuously operating the motor-operated pump except when the solenoid valve is opened to introduce make-up water into the system.
7 more elements
Dependencies are inferred from the claim text.