Patent ID: 9192275
Filing Date: 2015-11-24
Classification: A47L,G01F,G05D

Abstract:
1. A surface treating apparatus comprising, in combination: a tank containing a cleaning solution; a fluid flow line in communication with the tank and supplying the cleaning solution from the tank to a supply point; an agitating element adapted to agitate a surface, with the agitating element agitating the cleaning solution with the surface; a flow control module in line with the fluid flow line, with the flow control module permitting flow of the cleaning solution from the tank to the fluid flow line when the flow control module is open, with the flow control module being operable to control a flow rate and an amount of the cleaning solution from the tank to the fluid flow line, with the flow control module inhibiting flow of the cleaning solution from the tank through the fluid flow line to the supply point when the flow control module is closed; a solution sensor sensing a level of the cleaning solution in the tank; a controller coupled to the solution sensor and the flow control module, with the controller controlling the flow control module to operate at an operating flow rate based on the level of the cleaning solution in the tank; a chemical storage container containing a chemical; a chemical flow line in communication with the chemical storage container and the fluid flow line, with the chemical fluid line supplying the chemical from the chemical storage container to the fluid flow line, with the chemical mixing with the cleaning solution to form a cleaning compound, with the agitating element agitating the cleaning compound with the surface; a chemical pump in line with the chemical flow line, with the chemical pump coupled to the controller and being operable to control a flow rate of the chemical from the chemical storage container to the fluid flow line, with the controller controlling the chemical pump to operate at a flow rate based on the operating flow rate so that the cleaning compound is supplied to the supply point at a selected chemical dilution ratio; and a display coupled to the controller, with the display displaying the selected chemical dilution ratio and the level of the cleaning solution in the tank.