Patent ID: 6216312
Filing Date: 2001-04-17
Classification: A47L

Abstract:
A system for liquid based cleaning of a surface, the system having:a mobile cleaning tool having a head to generally cover an area of surface, and a spray assembly mounted beneath the head to direct the liquid, under pressure, at the area to aid in loosening material to be removed from the surface;a water source for supplying water to at least one supply tank;a first supply tank for supplying water to a source of reduced pressure;a second supply tank to supplying water to the cleaning tool;a first filtering device for filtering water received from the second supply tank;a pressure pump for pressurizing the water received from the first filtering device;a heating device for heating the water received from the pressure pump;a source of reduced pressure to recover liquid applied by the cleaning tool and material loosened from an area being cleaned;a water tank assembly comprising a first separator device and a second filtering device, the first separator device for separating solid waste from the liquid and loosened material recovered from the cleaned area, the second filtering device for filtering liquid from the first separator device; anda waste pump for discharging the liquid from the second filtering device into a sewer.