Patent ID: 6647587
Filing Date: 2003-11-18
Classification: A47L,Y10S

Abstract:
A vacuum cleaner, comprising:an electric blower for generating a suction force; a suction port body for taking in dust on a surface to be cleaned; a centrifugal force dust collection section to collect the dust from said suction port body, said centrifugal force dust collection section includes a suction air port coupled to said suction port body; and a substantially conically-shaped filter to remove the dust flowing from said centrifugal force dust collection section into said electric blower, said filter being arranged such that a cross-sectional diameter of said filter decreases in a direction toward a bottom of said centrifugal force dust collection section; wherein said electric blower comprises a fan section and a motor to drive said fan section, wherein said suction air port is arranged and dimensioned so as to guide air tangentially into an inner peripheral surface of said centrifugal force dust collection section, and wherein said vacuum cleaner is configured such that air flows from said centrifugal force dust collection section to said filter without passing through a filter housing wall.