Patent ID: 6432154
Filing Date: 2002-08-13
Classification: A47L,B01D,Y10S

Abstract:
A cyclone dust collecting apparatus for a vacuum cleaner comprising:a hollow cylindrical cyclone body having a predetermined height and an open upper end through which air and contaminants are drawn in and a dust discharge port, the dust discharge port being located proximate a lower end of the cyclone body, the dust discharge port allowing contaminants that have been separated from the air by centrifugation to pass therethrough; a dust receptacle connected to the cyclone body for collecting contaminants discharged from the cyclone body through the dust discharge port; a base member connected to and closing the lower end of the cyclone body and the dust the dust receptacle; a cover removably connected to the upper end of the cyclone body and the dust receptacle, the cover including an air intake channel through which outside air and contaminants are drawn into the cyclone body, and an air discharge channel through which air in the cyclone body is discharged; and a backflow prevention means, formed in an outline of the dust discharge port and having a height identical to the height of the cyclone body, for guiding contaminants discharged from the cyclone body to the dust receptacle and preventing a backflow of the contaminants collected in the dust receptacle from returning to the cyclone body.