JPH0337592U - - Google Patents
Info
- Publication number
- JPH0337592U JPH0337592U JP9797789U JP9797789U JPH0337592U JP H0337592 U JPH0337592 U JP H0337592U JP 9797789 U JP9797789 U JP 9797789U JP 9797789 U JP9797789 U JP 9797789U JP H0337592 U JPH0337592 U JP H0337592U
- Authority
- JP
- Japan
- Prior art keywords
- annular wall
- smoke detector
- scattered light
- detector according
- light type
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims 10
- 230000001154 acute effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989097977U JPH082797Y2 (ja) | 1989-08-24 | 1989-08-24 | 散乱光式煙感知器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989097977U JPH082797Y2 (ja) | 1989-08-24 | 1989-08-24 | 散乱光式煙感知器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0337592U true JPH0337592U (en]) | 1991-04-11 |
| JPH082797Y2 JPH082797Y2 (ja) | 1996-01-29 |
Family
ID=31647097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989097977U Expired - Lifetime JPH082797Y2 (ja) | 1989-08-24 | 1989-08-24 | 散乱光式煙感知器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082797Y2 (en]) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55462A (en) * | 1979-02-08 | 1980-01-05 | Nittan Co Ltd | Optical scatter type smoke sensor |
-
1989
- 1989-08-24 JP JP1989097977U patent/JPH082797Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55462A (en) * | 1979-02-08 | 1980-01-05 | Nittan Co Ltd | Optical scatter type smoke sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH082797Y2 (ja) | 1996-01-29 |