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. 05, 2009
Filed:
Apr. 21, 2004
Yukinobu Tajima, Chiyoda-ku, JP;
Hideki Yanagawa, Chiyoda-ku, JP;
Naoki Urusibata, Chiyoda-ku, JP;
Pixen Inc., Tokyo, JP;
Abstract
A fire alarm device and method capable of informing people with visual and hearing difficulties of occurrence of fire. A fire detection means () detecting the occurrence of fire is connected to an emission control means (). A smell emitting means () activated by the emission control meansis also connected to the emission control means (). The fire detection means () activates the emission control means () when detecting the occurrence of fire. The emission control means () is provided with a smell condition-setting means so as to set starting time for continuously-emitted smell, and to set emission periods, emission intervals and emission concentrations for intermittently-emitted smell. The smell emitting means () will be activated in accordance with the conditions set by the smell condition-setting means.