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:
Mar. 03, 2020
Filed:
Sep. 06, 2018
Tyco Fire & Security Gmbh, Neuhausen am Rheinfall, CH;
Stephen J. Penney, Middlesex, GB;
Andrew Naish, Surrey, GB;
Steven Bennett, Middlesex, GB;
Faruk Meah, Surrey, GB;
Johnson Controls Fire Protection LP, Boca Raton, FL (US);
Abstract
The detector has a first optical smoke detector having a first smoke detector light source arranged for emitting a first beam of light and a first scattered light sensor positioned to detect light from the first beam which is scattered by smoke present within a detection zone; a second optical smoke detector having a second smoke detector light source arranged for emitting a second beam of light and a second scattered light sensor positioned to detect light from the second beam which is scattered by smoke present within the detection zone; and an object proximity detector to detect an object in the detection zone.