Patent ID: 6358005
Filing Date: 2002-03-19
Classification: A47L

Abstract:
A vacuum cleaner comprisinga driven impeller, wherein the impeller moves working air for the vacuum cleaner from an inlet passage through an impeller cavity into a discharge plenum and from the vacuum cleaner via a working air outlet; and a first housing member including a first wall and a second housing member including a second wall, the second wall being radially displaced from and substantially concentric with the first wall and the first wall and the second wall together defining an annular passage between the impeller cavity and the discharge plenum, the annular passage being formed integral with the impeller cavity, and radially outwardly of an outer peripheral edge of the impeller, and is substantially continuous and uninterrupted about the impeller cavity, wherein the impeller rotates and draws the working air through a working air inlet and directs the working air radially outwardly into the impeller cavity through the annular passage into the discharge plenum.