Patent ID: 8561486
Filing Date: 2013-10-22
Classification: B01D,G01J,G01N,H01J,Y02A

Abstract:
1. An apparatus for sampling and concentrating a trace residue of an explosive or explosive-associated material from an object, structure, surface, cavity, vehicle or person, which comprises: a) a sampler head with directional nose, said nose having an intake port and upstream channel for receiving a first sample as a suction gas flow having a volume and a velocity and for conveying said suction gas flow to an air-to-air particle concentrator, said air-to-air particle concentrator for accelerating and inertially dividing said suction gas flow according to a flow split into a particle-enriched flow in a first downstream channel and a bulk flow in a second downstream channel; b) a particle trap with trap hollow volume disposed in said first downstream channel, said particle trap for immobilizingly accumulating particles from said particle-enriched flow in said trap hollow volume; c) a means for stripping any constituent or constituents of said accumulated particles from said trap hollow volume of said particle trap in a carrier volume; and d) a means for analyzing said carrier volume to detect a trace residue of an explosive or explosive-associated material.