Patent ID: 9354153
Filing Date: 2016-05-31
CPC Classification: G01N

Claim Text:
1. A particle impact device for a hand-held trace particle detection system, said particle impact device comprising: a first conduit defining an intake port defining a first transport area, said first conduit at least partially defining an air jet impingement port proximate said intake port, said air jet impingement port and said intake port defining a substantially annular configuration; and a second conduit coupled to said first conduit, said second conduit defining a discharge port defining a second transport area, said first transport area greater than said second transport area; and a combined deposition and deflection apparatus positioned downstream of said discharge port, said combined deposition and deflection apparatus defines a deposition and deflection surface positioned a predetermined distance from said discharge port, said deposition and deflection surface configured to deflect a fluid stream and collect at least a portion of particles entrained in the fluid stream.