发明授权
- 专利标题: Fire detector
- 专利标题(中): 火灾探测器
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申请号: US833893申请日: 1986-02-26
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公开(公告)号: US4709229A公开(公告)日: 1987-11-24
- 发明人: Hidenori Otsuka
- 申请人: Hidenori Otsuka
- 申请人地址: JPX Tokyo
- 专利权人: Nohmi Bosai Kogyo Co., Ltd.
- 当前专利权人: Nohmi Bosai Kogyo Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX60-38371 19850227; JPX60-38372 19850227
- 主分类号: G08B17/00
- IPC分类号: G08B17/00 ; G08B17/06 ; G08B17/10
摘要:
Fire detection apparatus includes a fire detector panel and an accumulation-type control panel in which the fire detection element is non-latching but the fire voltage detection circuit includes a fire indicator which is latched when a fire signal is detected for longer than a predetermined time. The circuit for latching is controlled by an accumulation circuit in the control panel that controls a relay closing that generates a fixed voltage suitable for the fire indicator.
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