US Patent 7811349 Vacuum cleaner with vortex stabilizer

A vacuum cleaner with a cyclone module assembly comprises a cyclone separation chamber for separating dust and debris from air, a dirt cup for collecting dust and debris that is separated from the air in the cyclone separation chamber, and a vortex stabilizer. The vortex stabilizer can be pivotally mounted to the cyclone separation chamber to allow access to the cyclone separation chamber when the dirt cup is removed from the cyclone module assembly.