Patent ID: 7806950
Filing Date: 2010-10-05
Classification: A47L,Y10S

Abstract:
1. A dust separating apparatus for a vacuum cleaner, comprising of: a plurality of cyclone units, the plurality of cyclone units being coupled such that air passes from one cyclone unit to another cyclone unit in sequence, each of the plurality of cyclone units adapted to receive air, swirl the air, and separate dust from the air, wherein each of the plurality of cyclone units is configured to be disposed within another cyclone unit from which it receives the air; and wherein the plurality of cyclone units comprise: a first cyclone unit, a second cyclone unit coupled to receive the air from the first cyclone unit, the second cyclone unit being substantially disposed within the first cyclone unit, and a third cyclone unit coupled to receive the air from the second cyclone unit, the third cyclone unit being substantially disposed within the second cyclone unit.