Methods and apparatus for extraction of particles from surfaces
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United States of America Patent
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-
Jul 3, 2012
Grant Date -
Oct 8, 2009
app pub date -
Oct 8, 2008
filing date -
Oct 8, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for the extraction of particles from surfaces is disclosed. A preferred method comprises the steps of (1) adjusting the temperature and humidity of an air supply to provide an adjusted air supply, (2) directing a blast from the adjusted air supply to a surface bearing particles, so as to produce a deflected blast that comprises some of the particles from the surface, (3) collecting the deflected blast and particles, and (4) directing the deflected blast and particles towards an analyzer. A preferred apparatus includes an air adjuster and a probe comprising an adjusted air supply passage, an adjusted air aperture, a deflected air aperture, and a deflected air passage, wherein the air adjuster is adapted to provide a flow of adjusted air to the adjusted air supply passage and the adjusted air aperture.
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