| 摘要 |
An applicator for applying electrostatically charged powder particles to a surface wherein the powder, prior to being charged, is fluidised by passing it into a mixing chamber through a first series of passages after it has been spread by a conical spreader, the apex of which is directed towards the incoming powder and injecting air or other gas under pressure into the mixing chamber through a second series of passages. A shaft may project forwardly into the mixing chamber. The first series of passages is located inwardly of the second series. |
