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:
Apr. 06, 2004
Filed:
Mar. 20, 2002
Kurt Weckstrom, Espoo, FI;
Instrumentarium Corp., Helsinki, FI;
Abstract
This invention relates a chemiluminescent gas analyzer for determining a concentration of a gaseous component (G ) in a sample gas mixture ( ). The analyzer comprises a measuring chamber ( ), an ozonizer ( ) with ozone generating devices ( ) for producing ozone-containing gas (G ), input conduits ( ) for delivering the ozone-containing gas and said gas mixture into the chamber and an outlet ( ). A detector ( ) receives radiation (E) emitted as a consequence of a reaction between the gaseous component and the ozone-containing gas. Said analyzer further comprises a flow delay device ( ) in or upstream the input conduit for said ozone-containing gas and downstream from the ozone generating devices ( ) of the ozonizer. The flow delay device has a delay volume (V ) causing a predetermined delay time (T) for the flow of the ozone-containing gas from said ozonizer to said measuring chamber ( ).