US 12,253,503 B2
Modular aspirated smoke, gas, or air quality monitoring systems and devices
Kemal Ajay, Mount Waverly (AU)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Oct. 14, 2021, as Appl. No. 17/501,432.
Claims priority of provisional application 63/093,209, filed on Oct. 17, 2020.
Prior Publication US 2022/0120723 A1, Apr. 21, 2022
Int. Cl. G08B 17/10 (2006.01); G01N 1/26 (2006.01); G01N 33/00 (2006.01)
CPC G01N 33/0022 (2013.01) [G01N 1/26 (2013.01); G01N 33/0031 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A modular monitoring unit, comprising:
a base having a plurality of sampling tubes mounted thereon;
at least one pump; and
a plurality of detector modules, each sampling tube of the base is in fluid communication with a different air sampling path that progresses through a detector module of the plurality of detector modules, each detector module of the plurality of detector modules is connected via one or more inlet ports and one or more outlet ports thereon to corresponding inlet and outlet ports of the base, such that air to be tested is communicated from each sampling tube attached to the base to an air sampling path within the detector module to which it has a fluid connection and that each detector module is each independently releasably attached to the base, wherein the at least one pump draws the air from one of the plurality of sampling tubes into the air sampling path and into a particulate sensing chamber within the detector module.