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:
Dec. 07, 2010
Filed:
Jul. 03, 2007
Applicant:
Fred J. Conforti, Lisle, IL (US);
Inventor:
Fred J. Conforti, Lisle, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 17/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method is provided for an improved sensor for detecting particles in air such as smoke particles from a fire. The detector includes a laser diode that generates a light beam that is spread by a lens to fill a specific area of the interior of a sensing chamber before entering into a light trap for extinction. The detector consequently has a better signal to noise ratio and therefore may be more sensitive than prior art detectors. The detector may also use a shorter wavelength laser to allow the detector to sense smaller particles than prior detectors and consequently provide faster response to flaming fires.