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公开(公告)号:US4961068A
公开(公告)日:1990-10-02
申请号:US295532
申请日:1989-01-11
IPC分类号: E03F7/00
CPC分类号: E03F7/00 , E03F2201/40
摘要: A pair of float operated sensors simultaneously detect inflow into the housing of an alarm assembly to actuate a buzzer and a lamp providing an early warning back-up alarm. One of the sensors remains actuated by the holding action of a magnet to continue operation signifying back-up recession. Under selective control, the buzzer is operated in by-pass relation to the sensors to indicate a low voltage condition of the battery powering the alarm assembly.
摘要翻译: 一对浮动操作的传感器同时检测到报警组件的壳体中的流入,以致动蜂鸣器和提供预警后备警报的灯。 其中一个传感器由磁铁的保持动作驱动,以继续运行,表明备用的衰退。 在选择性控制下,蜂鸣器与传感器旁通操作,以指示为警报组件供电的电池的低电压状态。