Patent ID: 8740013
Filing Date: 2014-06-03
Classification: B05B,G05D,Y10T

Abstract:
1. A method for controlling the delivery of compressed air to a tool, the method comprising the steps of: (a) receiving compressed air from a source; (b) determining a compressed air flow rate; (c) allowing the compressed air to flow through a first flow path at a selected rate sufficient to maintain a selected operating pressure when the determined compressed air flow rate is equal to or less than an air flow rate set with an air flow control valve associated with pumping a paint material having a first viscosity with a pump; and (d) automatically reducing the compressed air flow rate communicated to the pump, independent of a static and dynamic nature of the compressed air flow, by directing the compressed air to the pump via a second adjustable flow path, to maintain a preset air flow rate a pressure below the selected operating pressure associated with the first flow path when the determined compressed air flow rate associated with pumping a material having a second viscosity that is lower than the first viscosity of the paint material through the pump exceeds the selected flow rate to maintain operation of the pump at similar reciprocation rates for fluids having different viscosities.