Patent ID: 7896258

Claim:
A fluid application delivery system including a vehicle, multiple fluid applicators mounted thereto and a fluid conduit supplying fluid to said applicators from a reservoir, the system for applying a fluid to road surfaces used in open pit mining sites as required by the Environmental Protection Agency for controlling an amount of dust released to the atmosphere, the system comprising: a hydraulic pump driven by the engine of the vehicle; a hydraulic motor driven by the flow of hydraulic fluid provided thereto, wherein the speed of the motor is proportional to the flow of the applied hydraulic fluid; a hydraulic valve coupled between the hydraulic pump and the hydraulic motor for controlling the flow of hydraulic fluid to the hydraulic motor; a fluid application pump driven by the hydraulic motor and for providing the fluid to be applied to the road surface to the fluid applicators, wherein an amount of application fluid pumped by the fluid application pump is proportional to the speed of the hydraulic motor; a speed sensor for detecting the speed of the vehicle and for generating a signal indicative of the detected speed; and a control apparatus having a control coupling to the hydraulic valve and the multiple fluid applicators for controlling the application of the fluid to the road surface and located within the area for which the vehicle is controlled, the apparatus comprising; a programmable logic controller having an input for receiving the detected speed signal, and responsive thereto controlling the speed of the hydraulic motor via the flow from the hydraulic valve for enabling a controlled amount of application fluid to be provided to the multiple fluid applicators in relation to the detected vehicle speed; and a touch screen graphical user interface in communication with the logic controller for enabling a user to select from a plurality of programmed responses provided by the logic controller, wherein each one of the selections enables a different controlled amount of application fluid to be applied to the road surface.