| CPC A47L 11/28 (2013.01) [A47L 11/4044 (2013.01); A47L 11/4083 (2013.01); A47L 2201/06 (2013.01)] | 19 Claims |
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8. A robotic cleaning device comprising:
a chassis including a set of wheels;
a motor to drive the wheels;
a receiver for acquiring signals;
a processor for controlling the motor and cleaning operations of the robot; and
a removable mop attachment module, comprising:
a reservoir;
an opening disposed on a top surface of the reservoir for filling the reservoir with a fluid;
a lid for sealing the opening;
at least one drainage aperture positioned on a bottom surface of the reservoir;
at least one breathing aperture positioned on a top surface of the reservoir;
a mopping cloth positioned on the bottom surface of the reservoir to directly receive fluid drained from the at least one drainage aperture;
a means for holding the mopping cloth to the bottom surface of the reservoir; and
a pressure actuated valve mounted on the top surface of the reservoir and positioned at least partially inside the reservoir, covering the at least one breathing aperture,
wherein:
the pressure actuated valve opens from a closed position when an air pressure inside the reservoir reaches a predetermined amount of negative air pressure;
the pressure actuated valve closes from an open position when the air pressure inside the reservoir increases to a predetermined amount; and
the opening and closing of the pressure actuated valve at least partially control the flow of the fluid out of the reservoir through the at least one drainage aperture; and
wherein the removable mop attachment module is removable as a single unit from a body of the robotic cleaning device.
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