The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2001
Filed:
Sep. 21, 1999
Apparatus combining spectrophotometry and flame ionisation detection for analysing a gas composition
Patrick Bleuse, Bois d'Arcy, FR;
Pierre Clausin, Ville d'Avray, FR;
Gilles Guene, Elancourt, FR;
Henri Lancelin, Athis-Mons, FR;
Proengin S.A., , FR;
Abstract
The invention concerns an apparatus comprising an intake scoop (,) for the gas sample to be analyzed and, coaxial to said scoop (,): two tubular sleeves (,) defining respectively an intake chamber (,) for an oxygen carrier gas opening into a first combustion chamber (,), and an intake chamber (,) for an oxidant gas opening into a second combustion chamber (,); a pair of electrodes (,) associated with a circuit (,) measuring the conductivity of a combustion zone located in the second combustion chamber (,) and focusing optics (,) focusing the image of the flame generated in the combustion chambers (,) on the input orifice of a spectrophotometer (,); a processor (,) processes the data from the circuit (,) and from the spectrophotometer (,) to deduce therefrom the concentration in the searched elements. The invention is particularly useful for detecting sulphur, phosphorus and organic compounds.