JPS5399899A - Smoke sensor - Google Patents
Smoke sensorInfo
- Publication number
- JPS5399899A JPS5399899A JP1531777A JP1531777A JPS5399899A JP S5399899 A JPS5399899 A JP S5399899A JP 1531777 A JP1531777 A JP 1531777A JP 1531777 A JP1531777 A JP 1531777A JP S5399899 A JPS5399899 A JP S5399899A
- Authority
- JP
- Japan
- Prior art keywords
- smoke sensor
- inspection
- pierce
- shields
- constitution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To obtain the constitution in which the inspection can be repeated easily, by making some part of the cover, which shields, the light source and photo detector of the optical smoke sensor from external light of an elastic body, and by causing a small pointed body to pierce as to the inspection.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1531777A JPS5399899A (en) | 1977-02-14 | 1977-02-14 | Smoke sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1531777A JPS5399899A (en) | 1977-02-14 | 1977-02-14 | Smoke sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5399899A true JPS5399899A (en) | 1978-08-31 |
Family
ID=11885391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1531777A Pending JPS5399899A (en) | 1977-02-14 | 1977-02-14 | Smoke sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5399899A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102509415A (en) * | 2011-12-27 | 2012-06-20 | 上海烟草集团有限责任公司 | Smoke detecting fire-fighting probe protector |
-
1977
- 1977-02-14 JP JP1531777A patent/JPS5399899A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102509415A (en) * | 2011-12-27 | 2012-06-20 | 上海烟草集团有限责任公司 | Smoke detecting fire-fighting probe protector |
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