Measuring and testing – Gas analysis – Solid content of gas
Reexamination Certificate
2005-12-27
2005-12-27
Williams, Hezron (Department: 2856)
Measuring and testing
Gas analysis
Solid content of gas
C073S031070, C073S863110, C073S863230
Reexamination Certificate
active
06978657
ABSTRACT:
A portable system for the detection of chemical particles such as explosive residue utilizes a metal fiber substrate that may either be swiped over a subject or placed in a holder in a collection module which can shoot a jet of gas at the subject to dislodge residue, and then draw the air containing the residue into the substrate. The holder is then placed in a detection module, which resistively heats the substrate to evolve the particles, and provides a gas flow to move the particles to a miniature detector in the module.
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Baumann Mark J.
Brusseau Charles A.
Hannum David W.
Linker Kevin L.
Hanley John C
Libman George
Sandia Corporation
Watson Robert D.
Williams Hezron
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