Vacuum pathway in a cleaning device

摘要

A cleaning apparatus is disclosed for extracting a liquid from a surface. The apparatus includes at least one extraction head (201) that has at least one aperture (304) that is facing the surface to be cleaned. The vacuum cleaner includes a vacuum pathway (700) situated between the at least one extraction head (201) and a riser (712) that is connected to a vacuum motor. The internal surfaces of the vacuum pathway (700) are smooth and the vacuum pathway has certain dimensions and orientations that optimize the extraction of a liquid from a surface.