A mobile surface cleaner is provided, which includes a mobile body configured to travel over a surface, a source of a liquid, a liquid dispenser, a flow path from the liquid source to the liquid dispenser, and an electrolyzing sparging device in fluid communication with the flow path....http://www.google.fr/patents/US8046867?utm_source=gb-gplus-shareBrevet US8046867 - Mobile surface cleaner having a sparging device
