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. 18, 2023
Filed:
Sep. 18, 2018
Cambridge Enterprise Limited, Cambridge, GB;
Luigi Occhipinti, Cambridge, GB;
Pelumi Oluwasanya, Cambridge, GB;
CambAir Ltd, Cambridge, GB;
Abstract
A particle sensing device is disclosed for sensing particles entrained in a gas, distribution of particle sizes including a first size range (e.g. PM2.5) and a second size range (e.g. PM10), larger than the first size range. A thermophoretic impulse is applied to the entrained particles. The device has a a first sensor, downstream of the thermophoretic impulse region. The thermophoretic impulse, the flow of gas and gravity combine to cause at least some of the particles to follow respective trajectories within the sampling volume. An interception unit is interposed between the thermophoretic impulse region and the first sensor, to intercept the respective trajectories of particles of the second size range but not respective trajectories of particles of the first size range. The first sensor is located to intercept and detect the respective trajectories of particles of the first size range.