US 12,130,032 B2
Compact duct detectors for HVAC systems
Dale Howells, Auburn Hills, MI (US); Hemal Shahporia, Auburn Hills, MI (US); and Matthew Szafranski, Troy, MI (US)
Assigned to Apollo America, Inc., Auburn Hills, MI (US)
Filed by Apollo America Inc., Auburn Hills, MI (US)
Filed on Sep. 24, 2021, as Appl. No. 17/448,743.
Prior Publication US 2023/0109770 A1, Apr. 13, 2023
Int. Cl. F24F 11/33 (2018.01); F24F 11/526 (2018.01); F24F 11/88 (2018.01); F24F 11/89 (2018.01); F24F 110/64 (2018.01); F24F 110/70 (2018.01); F24F 110/72 (2018.01); F24F 110/76 (2018.01); G01D 11/24 (2006.01)
CPC F24F 11/33 (2018.01) [F24F 11/526 (2018.01); F24F 11/88 (2018.01); F24F 11/89 (2018.01); G01D 11/245 (2013.01); F24F 2110/64 (2018.01); F24F 2110/70 (2018.01); F24F 2110/72 (2018.01); F24F 2110/76 (2018.01)] 16 Claims
OG exemplary drawing
 
1. A detector comprising:
a detection chamber configured to receive an air sample;
a sensor configured to detect an attribute of the air sample and generate a detection signal based on the detected attribute;
a control circuitry configured to receive the detection signal and generate a communication signal or a control signal based on the received detection signal, wherein the control circuitry is vertically disposed above the detection chamber, wherein the control circuitry comprises a printed circuit board forming a top wall of the detection chamber, and wherein the sensor is attached to a bench assembly at a bottom surface of the printed circuit board;
a sealing gasket that seals the control circuitry from the detection chamber, the sealing gasket being disposed between the bottom surface of the printed circuit board and a bottom housing of the detector; and
a top cover affixed to the bottom housing on a hinge and configured to swivel on the hinge and allow access to the printed circuit board without damaging the sealing gasket.