Patent ID: 6193167
Filing Date: 2001-02-27
Classification: B05B

Abstract:
A plant for automatic spray application of paint through a spray nozzle included therein, said plant comprising:at least two arrangements for providing paint for spray application connected to the spray nozzle through first supply lines arranged in parallel to each other,means for feeding paint in the respective first line from the respective arrangement to the spray nozzle,first valve means arranged in the respective line downstream of the feeding means with respect to the feeding direction and controllable to open and close the fluid connection between the respective arrangement and the spray nozzle so as to allow spraying of paint coming from one arrangement at the time,a device adapted to, after feed of paint through one of said first lines to the spray nozzle followed by closing the associated valve means for changing to another arrangement providing paint, feed into said one first line at a location upstream of the associated first valve means with respect to the feeding direction such a volume of a fluid in the reverse direction with respect to said feeding direction that paint present in this first line is pushed back into the associated arrangement without the latter being reached by said fluid.