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. 10, 2021
Filed:
Mar. 03, 2015
Msp Corporation, Shoreview, MN (US);
Modi Chen, Lauderdale, MN (US);
Lin Li, Arden Hills, MN (US);
Virgil Alan Marple, Maple Plain, MN (US);
Amir A. Naqwi, Eden Prairie, MN (US);
Francisco J. Romay, Vadnais Heights, MN (US);
Daryl L. Roberts, Blaine, MN (US);
Benjamin Y. H. Liu, North Oaks, MN (US);
MSP CORPORATION, Shoreview, MN (US);
Abstract
An impactor, system and method for performing real-time measurements of particles in aerosol gases. The impactor comprises a plurality of cascading stages having impaction plates, mass-measurement mechanisms retained on the impaction plates, and a nozzle plate. A signal line associated with each of the plurality of cascading stages is configured to relay signals from the mass-measurement mechanism of the associated stage to a computer-based system configured to receive the transmitted signals from the signal lines, and to correlate changes in the resonant frequencies to particle concentrations in real time.