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:
Oct. 29, 2019
Filed:
Oct. 26, 2015
The University of British Columbia, Vancouver, CA;
The University of British Columbia, Vancouver, CA;
Abstract
An apparatus for monitoring particulate matter includes a fluid flow passage. Some embodiments include a cartridge defining a part of the fluid flow passage extending from a cartridge inlet to a cartridge outlet and a particle size selector in the fluid-flow passage between the cartridge inlet and the cartridge outlet. The particle size selector comprises a curve section in the fluid flow passage where the flow of fluid undergoes a change in direction and an impact surface extending transversely to the fluid flow passage on an outside of the curve. A particle counter is located downstream from the particle size selector. A pump is connected to drive a flow of a fluid containing the particulate matter through the fluid flow passage. The apparatus may be made compact. Embodiments may be worn and used to monitor exposure of persons to particulate matter. Example embodiments may be worn as portable personal devices, fixed in place to monitor particulate matter in specific areas, integrated into heating ventilating and air conditioning (HVAC) apparatus or provided in hand-held devices for spot-testing.