发明授权
- 专利标题： Alarm color plate structure of a micro-differential pressure gauge
- 专利标题（中）： 报警色板结构的微差压表
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申请号： US13104367申请日： 2011-05-10
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公开(公告)号： US08508365B2公开(公告)日： 2013-08-13
- 发明人: Li-Chen Chen
- 申请人： Li-Chen Chen
- 代理商 Chun-Ming Shih
- 主分类号： G08B21/00
- IPC分类号： G08B21/00
摘要：
An alarm color plate structure of a micro-differential pressure gauge includes a transparent casing. The transparent casing has a slot which is located corresponding to the range of movement of a pointer or a scale plate. An alarm plate is provided in the slot. The alarm plate has a plurality of areas with different colors or marks for the user to know whether the position and the value of the pointer are normal or not.
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