Patent ID: 8819882

Claim:
A combination of a tray and a cleaning device for cleaning surfaces, the cleaning device comprising; a head having an open side for facing surfaces to be cleaned; and at least one brush for contacting the surfaces to be cleaned, the at least one brush being rotatably arranged in the head, wherein the tray is configured to receive at least a portion of the head of the cleaning device, and to cover the open side of the head, wherein the tray comprises a bottom part and standing walls connected to the bottom part, wherein the bottom part serves for supporting the head of the cleaning device, wherein the standing walls jointly serve for encompassing the head of the cleaning device, wherein the tray comprises two areas, wherein a first area of the two areas is an elevated portion and a second area of the two areas has a surface larger than the first area, wherein the elevated portion protrudes from the bottom part above the surface of the second area towards the head and is located at a position on the bottom part where the at least one brush of the cleaning device is present when the cleaning device is in place on the tray, and wherein the tray is configured to receive and contain a liquid, at least in the second area.