Patent ID: 8656550
Filing Date: 2014-02-25
Classification: A47L

Abstract:
1. A floor-cleaning robot comprising: a wheeled housing having a perimeter; a motor drive operably connected to wheels of the housing to move the robot across a floor surface; a bumper responsive to obstacles encountered by the robot; a controller in electrical communication with both the bumper and the motor drive and configured to control the motor drive to maneuver the robot to avoid detected obstacles across the floor surface during a floor-cleaning operation; a driven cleaning brush, rotatable about an axis substantially parallel to an underside of the housing, the driven cleaning brush being disposed substantially across a central region of the underside and positioned to brush the floor surface as the robot is moved across the floor surface; and a driven side brush, comprising resilient brush arms extending outwardly from a hub and extending beyond the perimeter as the hub rotates and positioned to brush floor surface debris from beyond the perimeter toward a projected path of the driven cleaning brush along the floor surface, each of the brush arms having bristles at a distal end of each brush arm.