US 12,436,078 B2
Aspirating smoke detector with test module
Benjamin H. Wolf, Leicester (GB); Christopher Dearden, Melton Mowbray (GB); and Michael Barson, Nuneaton (GB)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Aug. 10, 2022, as Appl. No. 17/885,275.
Prior Publication US 2024/0053243 A1, Feb. 15, 2024
Int. Cl. G01N 15/06 (2024.01); G01N 1/24 (2006.01); G08B 17/103 (2006.01)
CPC G01N 15/06 (2013.01) [G01N 1/24 (2013.01); G08B 17/103 (2013.01); G01N 2001/245 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An aspirating smoke detector particulate or gas generation system, comprising:
an aspirating smoke detector device housing having a smoke or gas detecting chamber formed therein;
a sensor to determine whether smoke, gas, test particulate, or test generated gas is in the smoke or gas detecting chamber;
at least one sampling point positioned between the smoke or gas detecting chamber and a test aspirating smoke detector particulate or gas generation module;
the test aspirating smoke detector particulate or gas generation module, comprising:
a housing having a test particulate or test generated gas generation chamber formed therein and wherein the test particulate or gas generation chamber has an inlet connection to a first pipe of an aspirating smoke detector pipe network and an outlet connection to a second pipe of an aspirating smoke detector pipe network; and
a test particulate or test generated gas release apparatus that introduces a predetermined amount of test particulate or test generated gas into the test particulate or test generated gas generation chamber so that after it travels through a portion of the aspirating smoke detector a measured amount can be determined by a smoke or gas detecting sensor.