US 12,437,622 B2
Smoke alarm with offset detection chamber and shield
Kenneth J. Mott, Colorado Springs, CO (US); Peter R. Bushnell, Cazenovia, NY (US); Jennifer Alexander, Minneapolis, MN (US); Peter R. Harris, Jupiter, FL (US); Daniel Asselin, Syracuse, NY (US); and Ahmed Hasan, Indianapolis, IN (US)
Assigned to KIDDE FIRE PROTECTION, LLC, Bradenton, FL (US)
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
Filed on Mar. 3, 2023, as Appl. No. 18/178,007.
Claims priority of provisional application 63/316,771, filed on Mar. 4, 2022.
Prior Publication US 2023/0290238 A1, Sep. 14, 2023
Int. Cl. G08B 17/107 (2006.01)
CPC G08B 17/107 (2013.01) 12 Claims
OG exemplary drawing
 
1. A smoke alarm comprising:
a housing including an upper housing portion and a lower housing portion, the upper housing portion and the lower housing portion, in combination, define a generally hollow interior of the housing;
a printed circuit board arranged within the interior of the housing;
an optical chamber assembly connected to the printed circuit board, the optical chamber assembly including an optical cover having an interior chamber and at least one smoke entry location, the optical cover protruding beyond an exterior surface of the lower housing portion such that a substantial entirety of the interior chamber of the optical cover is external to the housing; and
at least one light device for evaluating particles within the interior chamber of the optical cover.