Patent ID: 7845307

Claim:
An electrostatic spray system installation comprising: a vertical member having an elongate length and a transverse width and forming two outside surfaces along opposing sides of the length, the vertical member being positioned above a conveyed substrate such that the transverse width is aligned with an axis of travel of the substrate; parallel flow distribution modules made from non conductive materials that are coupled to the vertical member, the parallel flow distribution modules are positioned adjacent to the two outside surfaces of the vertical member for providing continuous parallel sprays; a conductive surface including a pair of charging strips, each strip being mounted to one of the two outside surfaces of the vertical member and facing a flow distribution module and maintained at a voltage of a minimum of 20,000 volts, wherein each of the flow distribution modules is supplied by a controlled flow of a flowable material, and wherein the flow distribution modules can be given different dimensions and can be positioned to give various spray configurations; one or more target bars formed with a length oriented parallel to and spaced from the vertical member with the substrate conveyed therebetween each target bar being maintained at a different electrical potential from that of the charging strips thereby defining one or more electrostatic fields, in which each target bar is separate from a catch tray and formed with a height having high parts and low parts, the high parts being spaced along the length to create distinctive electrical fields for providing continuous parallel sprays onto the substrate by attracting the spray towards the high parts and away from the low parts; and grooves in the non-conductive flow distribution flow modules, said grooves disposed over the conductive surface and said grooves being parallel with the electrostatic field and are distributed over the width of the flow distribution modules.