Invention Grant
- Patent Title: Light scattering type smoke detector
- Patent Title (中): 光散射型烟雾探测器
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Application No.: US12683926Application Date: 2010-01-07
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Publication No.: US08773272B2Publication Date: 2014-07-08
- Inventor: Tetsuya Nagashima
- Applicant: Tetsuya Nagashima
- Applicant Address: JP Tokyo
- Assignee: Hochiki Corporation
- Current Assignee: Hochiki Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sherr & Jiang, PLLC
- Priority: JP2003-386688 20031117; JP2003-386689 20031117
- Main IPC: G08B17/10
- IPC: G08B17/10
Abstract:
A light scattering type smoke sensor includes a sensor body, light-emitter for emitting light toward an open smoke-sensing space and outputting a light-received signal according to the amount of scattering light received, and a fire judging unit for judging whether fire occurs or not on the basis of the amount of received light determined on the basis of the outputted light-received signal.
Public/Granted literature
- US20100118303A1 LIGHT SCATTERING TYPE SMOKE DETECTOR Public/Granted day:2010-05-13
Information query
