The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2022
Filed:
Jun. 24, 2020
Applicant:
Kidde Technologies, Inc., Wilson, NC (US);
Inventors:
Elbert Jeyapaul, Karnataka, IN;
Thambiraj Avudaiappan, Bengaluru, IN;
Assignee:
KIDDE TECHNOLOGIES, INC., Wilson, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/33 (2006.01); B64D 45/00 (2006.01); G08B 17/103 (2006.01);
U.S. Cl.
CPC ...
G01N 21/33 (2013.01); B64D 45/00 (2013.01); G08B 17/103 (2013.01); B64D 2045/009 (2013.01); G01N 2201/0636 (2013.01); G01N 2201/0638 (2013.01); G01N 2201/06113 (2013.01);
Abstract
A smoke detector includes a laser light source to provide incident light. The smoke detector also includes a Fabry-Perot etalon to transmit some incoming light, which is produced from the incident light, as transmitted light. Smoke particles in a cavity of the Fabry-Perot etalon affect an intensity of one or more wavelengths of the transmitted light.