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. 19, 2022
Filed:
Oct. 31, 2019
Tsi Incorporated, Shoreview, MN (US);
Aerosol Dynamics Inc., Berkeley, CA (US);
Daniel C. Bjorkquist, Shoreview, MN (US);
Arantzazu Eiguren Fernandez, El Cerrito, CA (US);
Kenneth Farmer, Lake Elmo, MN (US);
Melissa Grose, Shoreview, MN (US);
Susanne Vera Hering, Berkeley, CA (US);
Gregory Stephen Lewis, Berkeley, CA (US);
Steven Russel Spielman, Oakland, CA (US);
David Workman, Shoreview, MN (US);
TSI Incorporated, Shoreview, MN (US);
Aerosol Dynamics Inc., Berkeley, CA (US);
Abstract
A system includes a first and second condensation particle counter, each counter having an inlet port, a growth column, and an optical element for counting particles detected at the respective inlet ports. The counters are configured to include a wick in which the wick is wetted by water. A differential pressure sensor is coupled to the first inlet port and coupled to the second inlet port. The sensor is configured to provide a pressure signal. A processor is coupled to memory and configured to receive the first signal, the second signal, and the pressure signal and generate an output corresponding to a ratio of the first signal and the second signal and correlate the ratio with the pressure signal. A housing is configured to receive the first counter, the second counter, the differential pressure sensor, the processor, and the memory.