Patent ID: 6532619
Filing Date: 2003-03-18
Classification: A47L

Abstract:
A portable surface cleaning apparatus, comprising:a base module for movement along a surface to be cleaned and comprising a base housing; an upright handle pivotally mounted to the base housing; a fluid recovery system comprising: a tank having a fluid recovery chamber for holding recovered fluid; a suction nozzle associated with the base module; a working air conduit extending between the recovery chamber and the suction nozzle; a vacuum source in fluid communication with the recovery chamber for generating a flow of working air from the nozzle through the working air conduit and through the recovery chamber to thereby draw dirty liquid from the surface to be cleaned through the nozzle and working air conduit, and into the recovery chamber; a liquid dispensing system comprising: a liquid dispensing nozzle associated with the base module for applying liquid to the surface to be cleaned; a fluid supply chamber for holding a predetermined amount of supply fluid; and a fluid supply conduit fluidly connected to the fluid supply chamber and to the dispensing nozzle for supplying liquid to the dispensing nozzle; and a rotatable agitation brush associated with the base module and a motor for rotatably driving the brush, the brush comprising: a brush body rotatably mounted to the base module; a plurality of pliable agitation elements mounted along the brush body for contacting a surface to be cleaned, the agitation elements having a face extending along the length thereof; and the position of the brush body above the surface to be cleaned and the length and pliability of the pliable agitation elements are selected so that a substantial portion of the face of the pliable elements are drawn across the surface to be cleaned as the brush body is rotated.