Patent ID: 7422684

Claim:
A water dispenser, comprising: a) a housing having a reservoir surrounded by a reservoir wall and having a top, multiple inlets, a spigot for dispensing water; b) a flow line in the housing for supplying water to the spigot; c) the flow line communicating with a reservoir of water to be treated with ozone; d) a pump positioned within the reservoir, the pump having a housing that includes a tubular part extending downwardly from the top of the reservoir, a motor mounted at the top of the tubular part of the pump housing and outside the reservoir, an impeller, and a hollow shaft connecting the motor to the impeller; e) an ozone generator; f) supply tubing connecting the ozone generator to the upper end of the hollow shaft, the hollow shaft being configured and arranged to deliver ozone gas to the center of the impeller; g) a water inlet facing the bottom of the reservoir for introducing water to the pump housing interior; h) wherein water and ozone mix within the pump interior; i) the pump housing having a lower portion with an outlet for discharging a water and ozone bubble mixture into the reservoir in a spiral flow pattern about a central vertical axis of the reservoir.