Patent ID: 11871888
Assignee: IROBOT CORPORATION
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 24:
25. A cleaning robot comprising:
a drive system to move the cleaning robot across a floor surface; and
a cleaning roller mounted to the cleaning robot along a bottom portion of the cleaning robot, the cleaning roller rotatable about a longitudinal axis of the cleaning roller to clean the floor surface as the cleaning robot is moved across the floor surface, wherein the cleaning roller comprises:
a vane attached to an outer surface of the cleaning roller, the vane configured to direct debris into an interior of the cleaning robot as the cleaning roller is rotated about the longitudinal axis; and
a nub attached to the outer surface of the cleaning roller, the nub extending outwardly from the outer surface to support the cleaning roller on an obstacle located on the floor surface to lift the cleaning robot relative to the obstacle, a height of the nub above the outer surface being less than a height of the vane above the outer surface.