Patent ID: 8241586

Claim:
A device for disinfecting operatory unit water and lines, comprising: a liquid source including a pressurized water line or a reservoir; an ozone generator using a corona discharge to produce an ozone containing gas; a protection system that prevents liquid from the liquid source from entering the ozone generator; an ozone mixing system, said ozone mixing system mixing and dissolving the ozone containing gas in the liquid and producing a quantity of ozonated liquid that is, when the device is operating, greater than the amount that is demanded by the operatory unit; a continuous circulation system that continuously re-circulates the liquid containing dissolved ozone through a pressurized liquid recirculation passageway connected to and providing liquid containing dissolved ozone to the operatory unit, said circulation system including a back pressure control to maintain pressure sufficient to dispense the ozonated liquid from the recirculation passageway; a separation system that separates undissolved gas from the ozonated liquid prior to pressurizing and circulating the ozonated liquid through the recirculation passageway; a reducing system that prevents ozone in the separated gas from escaping into the atmosphere during operation of the device by passing the gas through an ozone reducing material before venting to atmosphere; a liquid admitting system that inputs liquid from the liquid source into the mixing system to replace liquid output to the operatory unit; and a control system for controlling the device to operate as desired to produce liquid containing dissolved ozone and to recirculate and output liquid containing dissolved ozone, said control system further including an ozone sensor, located in said liquid recirculation passageway, the ozone sensor connected to said control system and said control system further connected to an alarm to indicate whether the device is operating properly.