Patent ID: 7022154
Filing Date: 2006-04-04
Classification: A47L,B04C,Y10S

Abstract:
1. A cyclone-type dust collecting apparatus for a vacuum cleaner comprising: a cyclone body having a body portion with a dual structure, including a first outer cylinder and a first inner cylinder being open at a lower side thereof, and an air inlet portion and an air discharge portion connected to an upper surface of the body portion in an area of an upper surface of the inner cylinder for air, including entrained contaminants, flowing into the cyclone body through the air inlet portion to form a cyclone stream, the cyclone body having at least one first contaminant discharge path formed on the lower side of the first inner cylinder for discharging contaminants separated by the centrifugal force of the cyclone stream to a space between the first inner cylinder and the first outer cylinder; a contaminant collecting receptacle, removably mounted to the cyclone body, for collecting contaminants separated from the air by the cyclone stream generated inside the cyclone body, the contaminant collecting receptacle further having an inner space divided into a first contaminant collecting space and a second contaminant collecting space by a dual structure, including a second outer cylinder corresponding to the first outer cylinder and a second inner cylinder corresponding to the first inner cylinder, the contaminant collecting receptacle having at least one second contaminant discharge path formed on the lower side of the second inner cylinder for discharging contaminants from the first contaminant space to the second contaminant space; and a grill mounted at the beginning of the air discharge portion inside the cyclone body for preventing the contaminants separated from the air from flowing in a reverse direction through the air discharge portion.