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:
Jan. 31, 2012
Filed:
Apr. 19, 2011
Applicant:
Hiroyuki Yokota, Tokyo, JP;
Inventor:
Hiroyuki Yokota, Tokyo, JP;
Assignee:
Nohmi Bosai Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 17/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
To enable an air velocity of sampling air to be precisely measured, a smoke detector (S) includes: a smoke detection part () connected to a sampling pipe (); a fan () that sucks sampling air (SA) into the sampling pipe; and an air velocity sensor () that measures an air velocity of the sampling air within the sampling pipe. The air velocity sensor () is disposed at a primary side of the fan (), and a straightening vane () is disposed between the air velocity sensor () and a suction port () of the fan ().