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:
Jul. 12, 2011
Filed:
Dec. 22, 2004
Vidmantas Ulevicius, Vilnius, LT;
Markku Kulmala, Helsinki, FI;
Genrik Mordas, Vilnius, LT;
Vytautas Matulevicius, Vilnius, LT;
Vytautas Grigoraitis, Vilnius, LT;
Kaarle Hämeri, Espoo, FI;
Pasi Aalto, Helsinki, FI;
Vidmantas Ulevicius, Vilnius, LT;
Markku Kulmala, Helsinki, FI;
Genrik Mordas, Vilnius, LT;
Vytautas Matulevicius, Vilnius, LT;
Vytautas Grigoraitis, Vilnius, LT;
Kaarle Hämeri, Espoo, FI;
Pasi Aalto, Helsinki, FI;
Dekati Oy, Tampere, FI;
Abstract
A method and apparatus for increasing the size of small particles for a condensation particle counter, in which method a particle containing aerosol flow is divided into a sample flow and a sheath flow. The sheath flow is filtered, saturated with vapor and formed to a vortex flow in a saturator which vortex-flow continues in a condenser. The sample flow is introduced to the center of the vortex flow of the saturated sheath flow in the condenser for causing the vapor in the saturated sheath flow to condense on the particles in the sample flow thus increasing the size of the particles.