Patent ID: 6569218
Filing Date: 2003-05-27
Classification: A47L,Y10S

Abstract:
A vacuum-cleaning system, comprising:an electric, reversible motor connected to drive a motor shaft in either a forward or a reverse rotation; an air pump connected to be driven by the motor and that provides for a forced air flow in opposite directions depending on the forward or reverse rotation of the motor; a one-way clutch connected to the motor shaft and having a spindle output-shaft that is engaged and disengaged depending on the forward or reverse rotation of the motor; and a pleated cylindrical filter cartridge coaxially disposed on and attached to said spindle output-shaft to spin at the urging of the motor when the clutch is engaged, and further disposed in a reversible airflow path of the air pump; wherein, the filter cartridge does not spin substantially during operation of the motor in said forward direction with the clutch disengaged and provides for a removal of particles from said reversible airflow path; and wherein, the filter cartridge will spin to clean itself by centrifugal action during operation of the motor in said reverse direction with the clutch engaged.