Patent ID: 7208045

Claim:
A powdering unit comprising: a nozzle strip which produces a powder gas curtain containing powder particles distributed in a carrier gas stream, which powder gas curtain moves substantially in a curtain plane, wherein the powder gas curtain moves between two angled powder guiding elements each having a first powder guiding side arranged at least one of parallel to each other and coplanar, and each having a second powder guiding side running parallel to the powder gas curtain plane at least one of the second powder guiding sides which is remote from the first powder guiding side is connected to a carrying side which is perpendicular to the second powder guiding side and on which the nozzle strip is mounted, an end of the carrying side which is remote from the second powder guiding side is connected via an outer side to an end of the first powder guiding side which is remote from the second powder guiding side, and a resulting prismatic wall obtained overall in this way is closed at the ends thereof by end parts to form a box.