Optics: measuring and testing – For size of particles
Reexamination Certificate
2006-06-16
2010-02-23
Punnoose, Roy (Department: 2886)
Optics: measuring and testing
For size of particles
C356S417000, C356S246000
Reexamination Certificate
active
07667838
ABSTRACT:
A particle presentation apparatus for presenting particles being conducted within a gaseous stream for instream spectroscopic elemental analysis includes a particle blending section for homogenizing the distribution particles of significantly different sizes received within a gaseous stream of randomly distributed particles; and a particle sampling section including a window that is adapted for passing a particle excitation beam, such as a laser beam, and photon emissions, and a conduit for conducting the homogenized stream of particles past the window so that a particle excitation beam passing through the window can pass into the stream of homogenized particles. The apparatus may be used in combination with a drilling machine, wherein the particle blending section is coupled to an outlet pipe of the drilling machine for receiving a said gaseous stream of randomly distributed particles that are expelled from a drill hole.
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patent: 6211956 (2001-04-01), Nicoli
patent: 6482652 (2002-11-01), Furlong et al.
patent: 1501999 (2004-06-01), None
Ackerman Richard Edgar
Empey Eric R.
Stronski James Peter
Callan Edward W.
Punnoose Roy
Thermo Gamma-Metrics LLC
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