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:
Aug. 05, 2008
Filed:
May. 09, 2005
Richard C. Flagan, Pasadena, CA (US);
Stanley L. Kaufman, New Brighton, MN (US);
Gilmore J. Sem, Lauderdale, MN (US);
Richard C. Flagan, Pasadena, CA (US);
Stanley L. Kaufman, New Brighton, MN (US);
Gilmore J. Sem, Lauderdale, MN (US);
TSI Incorporated, St. Paul, MN (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
A system is disclosed for condensation particle counting in conjunction with modifying an aerosol to enhance the formation and growth of droplets of a selected working fluid, preferably water. Before saturation with the working fluid, the aerosol is exposed to an aerosol modifying component, preferably a vapor including molecules that are adsorbed onto surfaces of the particles or other elements suspended in the aerosol. Adsorption alters the surface character of the suspended elements towards increased affinity for the vapor of the working fluid, to promote the formation and growth of working fluid droplets. The droplets are optically detected to indicate numbers and concentrations of the suspended elements.