Powder bell with secondary charging electrode

摘要

A method and apparatus for dispensing electrically charged particles of a coating material. A source (44) provides the coating material to a coating material dispenser. An electrical supply supplies electrical charge. A first electrode (55) provides charge to the coating material as it is dispensed. At least one second electrode (130) is provided at a location removed from the first electrode (55). Both the first electrode and the at least one second electrode are coupled to the supply of electrical charge.