Patent ID: 6880201

Claim:
A vacuum cleaner having a main body and a handle, the main body being formed with a nozzle which delivers a stream of dirt-laden working air through a dirt duct into a working air inlet of a motor-fan assembly, the handle being supported on the motor-fan assembly and housing a filter bag which communicates with a working air outlet of the motor-fan assembly for receiving the dirt-laden working air, the motor-fan assembly having a motor housing, a motor with commutator brushes which give off carbon dust particles, a motor cooling fan for drawing a cooling airstream and a working fan for drawing the dirt-laden working air, the vacuum cleaner comprising: a cooling air inlet formed in the motor housing for receiving the cooling airstream into the motor housing; a cooling air outlet formed in the motor housing through which the cooling airstream exits the motor housing; a passage fluidly communicating with the cooling air outlet for directing the exiting cooling airstream into the dirt-laden working air; and a collar extending axially outwardly from the motor housing, said collar allowing pivotal rotation of the motor housing relative to the main body.