A method for operating a cleaning system with a plurality of mobile cleaning devices and a base station for the cleaning devices as well as a base station for a plurality of mobile cleaning devices are proposed, wherein the cleaning devices can be emptied by the base station and/or filled with a cleaning agent by the base station simultaneously and/or according to a prioritization. In addition, a filter apparatus for a base station is proposed which has a plurality of connection openings in order to be able to empty a plurality of cleaning devices.

A surface cleaning apparatus includes a recovery tank, a suction nozzle in fluid communication with the recovery tank, and a suction source in fluid communication with the suction nozzle and the recovery tank to generate a working air path to transport debris-containing fluid including air and liquid from the suction nozzle into the recovery tank. An air/liquid separator can be provided within the recovery tank for separating liquid from air in the debris-containing fluid.

A device for covering a plurality of different sized robotic systems. The device can include a cover sized to at least partially fit over the robotic system; one or more sidewalls extended from the cover, wherein the one or more sidewalls is configured to removably engage with each of the plurality of different sized robotic systems; and one or more apertures in the cover and/or the one or more sidewalls. The one or more apertures are selectively positioned and sized so as to prevent obstructing the one or more onboard sensors of the respective robotic system when the device is in an assembled state with the respective robotic system.

A pump apparatus includes a pump configured for moving air, a housing supporting the pump, and an air output hose in communication with the pump. The housing further includes a rest for retaining a portion of the air output hose. The rest forms a u-shape having two side walls and a valley therebetween.

A pump apparatus includes a pump configured for moving air, a housing supporting the pump, and an air output hose in communication with the pump. The housing further includes a rest for retaining a portion of the air output hose. The rest forms a u-shape having two side walls and a valley therebetween.

A cleaning device, in particular for a cleaning attachment for a hard surface vacuum cleaner, includes at least a first wiper lip and a second wiper lip. A third lip is arranged between the first and second wiper lips so as to space apart the first and second wiper lips.

A cleaning device, in particular for a cleaning attachment for a hard surface vacuum cleaner, includes at least a first wiper lip and a second wiper lip. A third lip is arranged between the first and second wiper lips so as to space apart the first and second wiper lips.

A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.

A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored.

An interlocking adapter in one aspect of the present disclosure includes a current path, an electric load, a switch, and a controller. The controller turns on and off the switch in synchronization with a change of an alternating-current voltage received from an electric outlet of an electric apparatus in response to reception of an interlocking command signal from a working machine so as to supply a load current from the electric outlet to the electric load. The controller turns on and off the switch at a specified ratio of a time every ½ cycle of the alternating-current voltage.