Patent ID: 7135106

Claim:
A hand-carried water purifier for use with a water bottle, the purifier comprising: a three-way valve having a water supply inlet, a water recycling inlet and an outlet, the valve being selectively actuatable between a first position where the outlet is in fluid communication with the water supply inlet and a second position where the outlet is in fluid communication with the water recycling inlet; a pump having an inlet and an outlet, the inlet of the pump being in fluid communication with the outlet of the valve; a filter having an inlet and an outlet, the filter being in fluid communication with the outlet of the pump; an ozone generator to generate ozone from oxygen provided by an oxygen bottle; an ozone injector having an inlet and an outlet, the inlet of the injector being in fluid communication with the outlet of the filter, the injector mixing ozone from the ozone generator with water when flowing between the inlet and the outlet of the injector; a case enclosing the valve, the pump, the filter, the ozone generator and the ozone injector; a bottle neck adapter to be removably secured by hand to the bottle, the bottle neck adapter having a water inlet, a water outlet and a gas outlet, the water inlet of the bottle neck adapter being in fluid communication with the outlet of the ozone injector, the water outlet of the bottle neck adapter being in fluid communication with the water recycling inlet; and a water level sensor connected to the bottle neck adapter to generate a signal to which the valve is responsive for selecting between the first and the second position of the valve.