Patent ID: 6461431
Filing Date: 2002-10-08
Classification: B05B,Y02P

Abstract:
A powder spray apparatus comprising a powder spray booth having a floor, side walls and end walls, one or more powder spray devices positioned with respect to the side walls to spray articles passed through the booth via openings in the end walls and a powder recovery module comprising separation means for separating powder from a powder-air mixture, suction means for removing overspray powder from the booth, an exhaust duct connected to the suction means and communicating with the booth for passage of air-borne overspray powder, collection means for collecting deposited air-borne overspray powder from the booth floor and a feed channel connected to the suction means, wherein the collection means moves the collected deposited overspray powder to the feed channel through which it is passed under the action of the suction means to the separation means characterised in that the exhaust duct forms part of the feed channel and in that means is provided for adjusting the relative amounts of suction provided by the suction means the air-borne overspray powder and the deposited overspray powder respectively.