Rotating dust wand

A dust wand comprising:

• a body having first and second ends and a suction chamber extending therebetween;
• a brush rotatably coupled to said first and second ends of said body, wherein a portion of said brush contacts said body;
• said suction chamber having an inlet poll disposed adjacent to an outer edge of said brush;
• and
• an internal nozzle at an outlet of said suction chamber having a flow area smaller than that of the suction chamber and redirecting airflow from the suction chamber to an impeller coupled to said brush by a transmission, wherein said impeller is rotated by the airflow through said internal nozzle to rotate said brush relative to the body.

A method for constructing a dust wand comprising:

• forming a body having a suction chamber disposed therein, the suction chamber having inner and outer walls with an inlet port extending longitudinally along the center of the inner wall of said suction chamber to form first and second inner walls, the second inner wall having a longitudinal contacting edge along said inlet port with a radius smaller than a radius of the first inner wall;
• rotatably coupling a brush at opposite ends of the body so that an outer edge of the brush is disposed adjacent to said inlet port;
• wherein the brush does not contact the first inner wall as the brush rotates toward the inlet and then contacts said contacting edge of the body along the inlet port;
• dislodging dust on the brush as the brush engages the inlet port edge;
• and
• disposing a drive system within the body, wherein the drive system rotates the brush relative to the body.

A dust wand comprising:

• a body having first and second ends and a suction chamber extending therebetween;
• a cylindrically shaped brush rotatably disposed between said ends and having a brush radius;
• said body having a surface along said suction chamber with a curvature conforming to said brush;
• wherein said suction chamber further comprises:
• an inlet port disposed longitudinally along said surface and adjacent to an outer edge of said brush;
• said surface having a first radiused curvature extending to said inlet port with a radius greater than said brush radius and a second radiused curvature extending from said inlet with a radius less that said brush radius;
• said second radiused curvature forming a contacting edge on said inlet port that contacts the outer edge of said brush;
• and
• a nozzle at an outlet of said suction chamber directing airflow to an impeller coupled to said brush by a transmission, wherein said impeller is rotated by the airflow through said suction chamber to rotate said brush relative to the body.