Patent ID: 7401744
Filing Date: 2008-07-22
Classification: B05B,B05C,B23K,H05K

Abstract:
1. A method of jetting droplets of viscous medium onto a substrate with a jetting device, said jetting device comprising a jetting outlet through which said droplets are jetted, comprising the steps of: providing a gaseous flow past the jetting outlet such that an adverse effect on the performance of the jetting device that may result from accumulation of viscous medium residue at the jetting outlet is prevented, providing a wall at the jetting outlet, said wall being located downstream of the jetting outlet seen in the jetting direction, providing an orifice in said wall for permitting the jetted droplets to pass through the orifice, the orifice and the jetting outlet being aligned in the jetting direction, directing said gaseous flow after having passed the jetting outlet into a viscous medium waste compartment, and collecting in said waste compartment viscous medium transported from the jetting outlet by the gaseous flow.