Paul D Long

US Patent:

8176597, May 15, 2012

Filed:

Jul 11, 2006

Appl. No.:

11/816134

Inventors:

Louis E. Stein - Houston TX, US
Doris Stein, legal representative - Houston TX, US
Paul B. Long - Spring Lake MI, US

Assignee:

BISSELL Homecare, Inc. - Grand Rapids MI

International Classification:

B01D 45/12
A47L 9/16

US Classification:

15353, 55345, 55424, 55426, 55DIG 3

Abstract:

A vacuum cleaner has a cyclone module assembly comprising a cyclone separation chamber for separating dust and debris from air with the generation of a cyclonic airflow vortex forming a vortex tail, the cyclone separation chamber having an inlet opening in fluid communication with the suction nozzle through the working air path and an outlet opening for discharging cleaned air, and a dirt cup for collecting dust and debris that is separated from the air in the cyclone separation chamber. The inlet opening in the cyclone separation chamber is formed with a pair of opposed inlets. The opposed inlets can be symmetrically or asymmetrically positioned with respect to each other. The cyclone separation chamber can comprise first and second concentric cyclone separation chambers and the opposed inlets can form the inlet opening to the second or inner cyclone separation chamber. The cyclone separation chamber can further have at least one vortex stabilizer for retaining the vortex tail at a predetermined location with respect to the cyclone separation chamber.