Patent ID: 6620243
Filing Date: 2003-09-16
Classification: B05C,Y10S

Abstract:
Electrostatic fluidized bed powder coating apparatus comprising:powder coating structure defining a powder coating area in which a work piece is to be coated during a powder coating operation, a powder fluidizing bed operatively disposed relative to the powder coating structure and adapted to receive and fluidize a supply of powder during the powder coating operation, an electrostatic charging device operatively disposed relative to the powder fluidizing bed to charge the powder, a powder accumulator for collecting excess powder from the powder coating structure during the powder coating operation, and a vacuum pump communicating between the powder coating structure and the powder accumulator and operable by a source of compressed air for forming and controlling a cloud of powder emanating from the fluidizing bed and for transferring excess powder from the powder coating structure to the powder accumulator.