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:
Sep. 22, 2015
Filed:
Oct. 24, 2014
Applicant:
Matthew Erdtmann, Londonderry, NH (US);
Inventor:
Matthew Erdtmann, Londonderry, NH (US);
Assignee:
Valor Fire Safety, LLC, Londonderry, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); G01N 21/53 (2006.01); G08B 17/107 (2006.01);
U.S. Cl.
CPC ...
G01N 21/53 (2013.01); G08B 17/107 (2013.01); G01N 2201/062 (2013.01);
Abstract
In accordance with certain embodiments, a smoke detector determines the presence of smoke particles outside its housing based on measurements of light detected at different wavelengths and corrected based on an ambient light level.