JPS6349825Y2 - - Google Patents
Info
- Publication number
- JPS6349825Y2 JPS6349825Y2 JP1983185060U JP18506083U JPS6349825Y2 JP S6349825 Y2 JPS6349825 Y2 JP S6349825Y2 JP 1983185060 U JP1983185060 U JP 1983185060U JP 18506083 U JP18506083 U JP 18506083U JP S6349825 Y2 JPS6349825 Y2 JP S6349825Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- signal
- oscillation
- output
- smoke
- 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.)
- Expired
Links
- 239000000779 smoke Substances 0.000 claims description 34
- 230000010355 oscillation Effects 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 25
- 238000012544 monitoring process Methods 0.000 description 25
- 238000012360 testing method Methods 0.000 description 6
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18506083U JPS6095689U (ja) | 1983-11-30 | 1983-11-30 | 煙感知器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18506083U JPS6095689U (ja) | 1983-11-30 | 1983-11-30 | 煙感知器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6095689U JPS6095689U (ja) | 1985-06-29 |
JPS6349825Y2 true JPS6349825Y2 (xx) | 1988-12-21 |
Family
ID=30400089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18506083U Granted JPS6095689U (ja) | 1983-11-30 | 1983-11-30 | 煙感知器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6095689U (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2744174B2 (ja) * | 1992-07-28 | 1998-04-28 | 松下電工株式会社 | 光電式煙感知器 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4193069A (en) * | 1978-03-13 | 1980-03-11 | American District Telegraph Company | Latching alarm smoke detector |
JPS5552559A (en) * | 1978-10-11 | 1980-04-17 | Victor Co Of Japan Ltd | Reproducing device for discoid recording medium |
-
1983
- 1983-11-30 JP JP18506083U patent/JPS6095689U/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4193069A (en) * | 1978-03-13 | 1980-03-11 | American District Telegraph Company | Latching alarm smoke detector |
JPS5552559A (en) * | 1978-10-11 | 1980-04-17 | Victor Co Of Japan Ltd | Reproducing device for discoid recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPS6095689U (ja) | 1985-06-29 |
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