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. 02, 2013
Filed:
Jun. 01, 2009
Janne Petteri Pitkanen, Kuopio, FI;
Tero Tapio Hannola, Vantaa, FI;
Terhi Marjukka Mattila, Kuopio, FI;
Janne Petteri Pitkanen, Kuopio, FI;
Tero Tapio Hannola, Vantaa, FI;
Terhi Marjukka Mattila, Kuopio, FI;
Environics Oy, , FI;
Abstract
The invention relates to equipment for concentrating and analyzing components contained in a flowing medium, and an analyzing method applying said equipment. The analyzing equipment comprises a concentrator, including a porous sorbent bed, in which components can be absorbed or adsorbed from the medium flow, said bed being electroconductive, so that components can be desorbed to a washing flow by heating the bed with electric current; and to an analyzer defining the desorbed components, said analyzer being for instance a gas detector. According to the invention, the sorbent bed is in the flowing direction widened towards its outlet end, having for example the shape of a truncated cone. By means of the invention, the temperature in the sorbent bed is equalized by transferring heat in the washing flow towards the bed outlet end, which end receives a weaker heating effect per unit of volume, owing to the widening shape of the bed.