Patent ID: 7836538

Claim:
A cleaning apparatus comprising: (i) a body assembly comprising: an elongated body housing having a chamber; a motor at least partially disposed within the chamber of the body housing; a body drive shaft at least partially disposed within the chamber of the body housing, the body drive shaft being coupled with the motor such that during selective operation of the motor, the body drive shaft is rotated about a rotational axis thereof; and a gear assembly disposed between the motor and the body drive shaft, the gear assembly increasing the torque produced on the drive shaft by the motor by a ratio in a range between about 1.5:1 to about 3.5:1; and (ii) a head assembly comprising: an elongated head housing; a head drive shaft disposed within the head housing and having a rotational axis about which the head drive shaft rotates; and a carrier plate having a rotational axis about which the carrier plate rotates, the carrier plate being coupled with the head drive shaft such that rotation of the head drive shaft facilitates rotation of the carrier plate, the rotational axis of the carrier plate intersecting the rotational axis of the head drive shaft so as to form an inside angle greater than 95°, the inside angle remaining constant during rotation of the carrier plate, the head assembly being adapted to be selectively coupled with the body assembly so that the body drive shaft is coupled with the head drive shaft; and a cleaning element secured to the carrier plate.