Patent ID: 6699529
Filing Date: 2004-03-02
Classification: B01J,B05B

Abstract:
A method for applying a catalyst coating to a vehicular radiator having a frame forming a window, a plurality of tubular conduits within the window for carrying a coolant and fins between the conduits having louvers formed therein, said method comprising the steps of:a) providing an agitated vat containing a slurry of said catalyst; b) providing a plurality of spray heads mounted in spaced relationship to a robotic arm movable relative to said radiator; c) providing for each spray head a source of pressurized air regulated by flow and/or pressure when valved into fluid communication with a spray head; d) providing for each spray head a separate pump for pumping said slurry from said vat to an associated spray head; e) controlling each pump to operate at a generally constant set speed; f) valving said pressurized air and the slurry from said pumps into fluid communication with said spray heads to produce an atomized fan shaped slurry spray from each spray head; g) maintaining said valved communication of air and slurry to said spray heads for a set time sufficient to allow said arm to complete a set movement pattern for spraying one face side of said radiator window with said slurry penetrating to at least the center depth of the fins; and, h) repeating steps (f) and (g) to spray the opposite face side of said radiator window.