Patent Number: 6,254,684

Title: Powder-spraying appliance

Abstract: A powder-spraying appliance for electrostatic powder coating of work pieces. In order to achieve particularly good charging of powder particles, the powder-spraying appliance contains a chamber, into which a powder/air mixture is introduced transversely to a spraying direction via a supply conduit. An earth electrode and a plurality of high-voltage electrodes are disposed in the chamber. All of the electrodes are flushed with cleaning air in order to avoid powder deposits on the electrodes.

Inventors: Borner; Gunter (Muhlhausen, DE), Nienburg; Hans-Christoph (Heidelberg, DE), Wittmann; Josef (Hockenheim, DE), Bohme; Helmut (Nussloch, DE)

Assignee: ABB Research Ltd.

International Classification: B05B 5/025 (20060101); B05B 5/03 (20060101); B05B 005/025 ()

Expiration Date: 07/03/2018