Patent ID: 6546593
Filing Date: 2003-04-15
Classification: A47L,B01D,B04C,Y10S

Abstract:
An upright type vacuum cleaner comprising:a body having a dust chamber and a motor chamber formed therein; a suction brush connected to the cleaner body for moving along a cleaning surface; and a cyclone type dust collecting means removably disposed in the dust chamber of the cleaner body for separating by centrifugal force and collecting minute particle dust and large particle contaminants from air that is drawn in through the suction brash, the cyclone type dust collecting means including; an upper cover, having a first air inlet connected to a suction hose for connecting between the suction brush and the dust chamber, and an air outlet to an exhaust hose for connecting between the dust chamber and the motor chamber; a substantially cylindrical outer cyclone receptacle having open upper and lower ends, the outer cyclone receptacle being coupled to the upper cover; an inner cyclone receptacle coupled to the upper cover in fluid communication with and disposed within the outer cyclone receptacle, the inner cyclone receptacle being shaped and configured to create an air vortex for collecting dust and a reverse flow prevention pipe extending a predetermined height from the center of the inner cyclone receptacle to guide reverse-ascending vortex air as it ascends from the bottom of the inner cyclone receptacle thereby inhibiting reverse flow of contaminants; and a lower cover mounted on a lower opening of the outer cyclone receptacle and covering both the outer and inner cyclone receptacles, the lower cover providing access to dust and contaminants collected in die inner and outer cyclone receptacles.