发明名称 Apparatus for applying a liquid coating with an improved spray nozzle
摘要 Apparatus and methods for spray coating selected areas of a circuit board with a liquid coating material without coating regions of the circuit board to be left uncoated. In one mode of operation, a bead of liquid coating material dispensed from an elongated nozzle tip is atomized by directing jets of air pressurized against the bead to form a conical, swirling spray pattern which is sprayed on selected areas of a circuit board. In a second mode of operation, the non-atomized bead of liquid coating material dispensed through the elongated nozzle tip is applied on selected areas of the circuit board. In a third mode of operation, jets of pressurized air are directed against the bead of liquid coating material to create a soft swirl pattern, without atomizing the bead of coating material. In a second embodiment of the invention, the bead of liquid coating material is dispensed from a nozzle without the elongated nozzle tip.
申请公布号 US6325853(B1) 申请公布日期 2001.12.04
申请号 US19970878756 申请日期 1997.06.19
申请人 NORDSON CORPORATION 发明人 HOGAN PATRICK THOMAS;SELESTAK DAVID M.;ZAKRAJSEK RICHARD;DONGES WILLIAM E.;HAVLIK CHRIS;HARRELL GREG;OMILION ZYGMUNT CARL;FOX KEVIN
分类号 B05B7/06;B05B7/08;B05B7/10;B05B7/12;B05B7/24;B05C5/02;H05K3/00;(IPC1-7):B05C5/00 主分类号 B05B7/06
代理机构 代理人
主权项
地址