Abstract: A sanitation device includes a mobile body, a surface cleaning component, and a source of UV radiation. The surface cleaning component and the source of UV radiation are mounted to the mobile body, which is configured to travel over a surface. The surface cleaning component is configured to engage the surface and the source of UV radiation is configured to direct UV radiation to the surface.

Abstract: One embodiment of a cleaning head comprises a frame, a cylindrical member and a fluid output. The cylindrical member is supported by the frame for rotation about a central axis. The cylindrical member comprises a porous and compressible outer cylindrical wall. The fluid output is configured to dispense a liquid to an interior cavity of the cylindrical member. In one embodiment, a motor is not directly coupled to the cylindrical member for driving the rotation of the cylindrical member about the central axis. In accordance with another embodiment, the cleaning head includes an electrolysis cell within the cylindrical member. The electrolysis cell comprises first and second electrodes, each comprising porous layers of conductive material.

Abstract: A hard surface cleaner includes a motorized scrub head, a fluid recovery device, a primary cleaning liquid component container, a cleaning agent container, a flow control device and a fluid flow path. The flow control device is configured to supply a flow of cleaning agent from the cleaning agent container at a flow rate of less than approximately 10 cubic centimeters per minute to a flow of primary cleaning liquid component from the primary cleaning liquid component container. The fluid flow path is configured to receive a flow of cleaning liquid, which comprises the cleaning agent and the primary cleaning liquid component.

Abstract: In a method for use in a hard floor surface cleaner, a supply of cleaning agent and a flow control device are provided. The flow control device is coupled to the supply of cleaning agent. Next, a flow of cleaning agent is provided that travels from the supply of cleaning agent through the flow control device. Finally, the flow of cleaning agent is restricted to less than approximately 10.0 cubic centimeters per minute using the flow control device.

Abstract: A chemical dispenser for use in a hard floor surface cleaner includes a supply of cleaning agent and a flow control device. The flow control device is fluidically coupled to the supply of cleaning agent and includes an output flow of cleaning agent therethrough having a flow rate that is substantially independent of a volume of the supply of cleaning agent.

Abstract: A chemical dispenser for use in a hard floor surface cleaner includes a supply of cleaning agent and a flow control device. The flow control device is fluidically coupled to the supply of cleaning agent and includes an output flow of cleaning agent therethrough having a flow rate that is substantially independent of a volume of the supply of cleaning agent.

Abstract: A mobile surface maintenance machine has a cleaning brush and a dust collection system mounted on the machine. The dust collection system includes a vacuum fan, a filter housing having an air inlet and a pleated filter element positioned within the housing with its upstream side being in communication with the housing air inlet. The filter housing has separate, side-by-side, chambers on the downstream side of the filter. There are electrically operated valves located in the filter housing on the downstream side of the filter element, with the valves being in communication with the vacuum fan. There is one valve controlling air flow from each chamber. The filter element is functionally divided into separate, but joined, pleated sections, with each section being aligned with one of the chambers. There is an electric actuator mounted on the downstream side of each pleated filter section and there is a pleat moving element associated with and movable by each electric actuator.