Patent ID: 7261764
Filing Date: 2007-08-28
Classification: B03C

Abstract:
1. A method of achieving uniform particulate depositions onto surfaces, comprising: providing one or more units of particulate matter; providing a deposition surface capable of (1) conducting an ion current; and (2) drawing said units of particulate matter to said deposition surface; providing a tube; providing an array of one or more corona electrodes capable of (1) creating an corona ion current; (2) creating a particulate charging zone having an ion charge density in the range of 0.001-0.01 Coulombs/meter providing one or more resistors associated with said corona electrodes and capable of being selectively set to one or more possible settings; spatially configuring said array of corona electrodes about said deposition surface such that a uniform electric field is generated; affixing said corona electrodes to said tube; providing a means for creating an aerodynamic force; applying said electric field and said aerodynamic force to said units of particulate matter; and focusing said units of particulate matter onto said deposition surface.