The invention refers to a process and a device for the fully automatic cleaning of spray guns foulded with paint or varnish, wherein the spray guns are immersed with their paint or varnish reservoir open into a cleaning fluid free of solvents or thinners, during a first cleaning phase the fluid is circulated...http://www.google.de/patents/US4881561?utm_source=gb-gplus-sharePatent US4881561 - Process and device for the fully automatic cleaning of spray guns fouled with paint or varnish
