US 12,405,205 B2
Personal air quality monitoring system
David Pariseau, Los Altos, CA (US); and Adam Giandomenico, Walpole, MA (US)
Assigned to Particles Plus, Inc., Stoughton, MA (US)
Filed by Particles Plus, Inc., Stoughton, MA (US)
Filed on Feb. 9, 2024, as Appl. No. 18/438,166.
Application 18/438,166 is a continuation of application No. 18/102,208, filed on Jan. 27, 2023, granted, now 11,913,869.
Application 18/102,208 is a continuation of application No. 17/512,406, filed on Oct. 27, 2021, granted, now 11,579,072, issued on Feb. 14, 2023.
Application 17/512,406 is a continuation of application No. 16/537,492, filed on Aug. 9, 2019, granted, now 11,169,077, issued on Nov. 9, 2021.
Application 16/537,492 is a continuation of application No. 16/443,508, filed on Jun. 17, 2019, granted, now 11,519,842, issued on Dec. 6, 2022.
Application 16/443,508 is a continuation of application No. 14/214,876, filed on Mar. 15, 2014, granted, now 10,352,844, issued on Jul. 16, 2019.
Claims priority of provisional application 61/786,658, filed on Mar. 15, 2013.
Claims priority of provisional application 61/786,616, filed on Mar. 15, 2013.
Claims priority of provisional application 61/786,667, filed on Mar. 15, 2013.
Claims priority of provisional application 61/786,642, filed on Mar. 15, 2013.
Claims priority of provisional application 61/786,651, filed on Mar. 15, 2013.
Prior Publication US 2024/0410814 A1, Dec. 12, 2024
Int. Cl. G01N 15/14 (2024.01); G01N 15/00 (2024.01)
CPC G01N 15/1459 (2013.01) [G01N 2015/0046 (2013.01); G01N 2015/1486 (2013.01); G01N 2015/1493 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A portable particle counter apparatus, comprising:
a device housing for an optical particle counter having a form factor enabling the device housing to be carried during operation by a user;
an air intake and outlet fluidly connected to a chamber in the device housing wherein an airstream passes through the chamber;
a light source in the device housing that emits a beam of light that passes through the airstream passing through the chamber;
a light detector in the device housing that detects light that passes through the airstream in the chamber, the light detector configured to detect airborne particles passing through the beam of light in the airstream traversing from the air intake to the outlet;
an analog circuit in the device housing connected to the light detector, the analog circuit including at least one amplifier in communication with the light detector, the at least one amplifier configured to convert signals from the light detector into amplified electrical pulses;
a microcontroller configured to count particles from the user's local environment that are detected passing through the chamber wherein the microcontroller processes particle count data from signals received from the analog circuit; and
at least one external communications interface communicatively coupled with the microcontroller that transfers particle count data to a mobile phone.