Patent ID: 9067219
Filing Date: 2015-06-30
Classification: B05B,G01N

Abstract:
1. A device for dislodging and releasing trace particles of explosives or narcotics from a target surface, comprising: at least one nozzle, the nozzle including: at least one second orifice for the emission of a second jet of pressurized gas directed towards said target surface, wherein a velocity of gas emitted by said second jet is equal to or greater than a velocity of gas emitted in said first jet, and wherein said at least one second orifice is at least one of: a single orifice coaxial to said first orifice and a plurality of orifices arrayed concentric to said first orifice, and wherein the second jet is aimed to focus or defocus gas flow of the pressurized gas of the second jet in order to modify a resultant spot size on the target surface; and at least one electronic controller that controls at least one of the first jet and the second jet, wherein the pulse of said second jet is emitted less than one second prior to the emission of the pulse from said first jet, and the pulse of said second jet is maintained during the pulse of said first jet.