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:
Feb. 04, 2003
Filed:
Dec. 11, 2001
Applicant:
Inventors:
Michel Pasquereau, Sartrouville, FR;
Jean-François Papagni, Saint Rémy les Chevreuses, FR;
Richard Levesque, Suresnes, FR;
Laurent Dayde, Suresnes, FR;
Assignee:
Institut Francais du Petrole, Rueil Malmaison-Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 1/22 ;
U.S. Cl.
CPC ...
G01N 1/22 ;
Abstract
A unit for sampling aldehydes and ketones contained in diluted exhaust gases from thermal combustion engines has a specific trapping circuit and a simulation circuit that simulates the specific trapping circuit. The specific trapping circuit and the simulation circuit are arranged in parallel so that the diluted gases can be passed for some time in the simulation circuit ( ) before they are passed into the specific trapping circuit wherein aldehydes and ketones are trapped.