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Method and apparatus for disinfecting a refrigerated water cooler reservoir

  • US 7,640,766 B2
  • Filed: 06/17/2003
  • Issued: 01/05/2010
  • Est. Priority Date: 06/17/2002
  • Status: Active Grant
First Claim
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1. A bottled water dispenser, comprising:

  • a) a cabinet having upper and lower end portions;

    b) an unpressurized reservoir contained within the cabinet, the reservoir containing water with a water surface;

    c) a diffuser that occupies the reservoir, for emitting bubbles into the reservoir;

    d) one or more spigots on the cabinet for dispensing water from the reservoir;

    e) an ozone generator housing positioned next to the cabinet, said housing having an ozone generator inside the housing;

    f) air flow lines for transmitting air between the ozone generator and the diffuser; and

    g) a pump that pumps air from the housing to the diffuser via the flow lines; and

    h) wherein the pump output is between about 1-10 liters per minute and the diffuser has a median pore size of 10-60 microns.

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