Device for indicating illicit substances in the exhalation...

Details Device for indicating illicit substances in the exhalation... Device for indicating illicit substances in the exhalation...

2007-05-07

2011-11-22

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C250S339130

Reexamination Certificate

active

08063371

ABSTRACT:
A device for a continuous indication of illicit substances in the exhalation air of face of the machine operator comprises an IR source and an IR detector being sensitive to wave length having an absorbance of the illicit substance, whereby the beam path of the IR source to the detector runs in front of the face of the operator.

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patent: 7173536 (2007-02-01), Duval
patent: 1441212 (2004-07-01), None
patent: 1688741 (2006-08-01), None
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patent: 0212883 (2002-02-01), None
PCT International Search Report, mailed Aug. 17, 2007, in connection with International Application No. PCT/SE2007/000436.
PCT International Preliminary Report on Patentability, mailed Nov. 11, 2008, in connection with International Application No. PCT/SE2007/000436.

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