Patent ID: 8377218

Claim:
A method for removing debris from a surface, the method comprising the steps of: a) providing a cleaning device including a surface engaging housing having a first cleaning member and a second cleaning member rotatably mounted to the housing between a first position and a second position, wherein the first cleaning member and the second cleaning member are semi-cylindrically shaped, a debris collection chamber is positioned in the housing, a first pair of stops are spaced from one another and positioned laterally relative to a central axis of the first cleaning member, and a second pair of stops are spaced from one another and positioned laterally with respect to a central axis of the second cleaning member, wherein the first pair of stops and the second pair of stops are configured to prevent rotation of the first cleaning member and the second cleaning member beyond the first position and the second position; b) moving the housing in a first direction to pick up debris from the surface on the first cleaning member; c) moving the housing in a second direction to divert the debris on the first cleaning member into the collection chamber; d) wherein the step of moving the device in the second direction comprises moving the first cleaning member into contact with a first debris diverting surface and the step of moving the housing in the first direction comprises moving the second cleaning member into contact with a second debris diverting surface; e) diverting debris with the first debris diverting surface with a first radiused edge that interacts with a contour of the first cleaning member and diverting debris with the second debris diverting surface with a second radiused edge that interacts with a contour of the second cleaning member; and f) passing the debris through a channel formed between the first and second debris diverting surfaces and into the collection chamber.