ELECTRIC VACUUM CLEANER AND METHOD OF ITS ADJUSTMENT Russian patent published in 2013 - IPC A47L9/28 

FIELD: personal use articles.

SUBSTANCE: electric vacuum cleaner includes the main vacuum cleaner body accommodating electric blowers 15A and 15B and having a dust collection bag positioned on the side of the suction side of the electric blowers 15A and 15B. The electric vacuum cleaner includes a indication means 47. The electric vacuum cleaner includes a control means 16 designed so that to enable switching of the electric blower 15 that is o be actuated according to a pre-determined condition. The control means 16 makes the indication means 47 indicate the dust collection bag filling degree when the air volume during the electric blower 15 operation is equal to or less than the first pre-determined air volume.

EFFECT: control means reduces the electric blower power when the air volume during the electric blower operation is equal to or less than the second pre-determined air volume.

7 cl, 8 dwg