JP2549712Y2 - イオン化式煙感知器 - Google Patents
イオン化式煙感知器Info
- Publication number
- JP2549712Y2 JP2549712Y2 JP1990017924U JP1792490U JP2549712Y2 JP 2549712 Y2 JP2549712 Y2 JP 2549712Y2 JP 1990017924 U JP1990017924 U JP 1990017924U JP 1792490 U JP1792490 U JP 1792490U JP 2549712 Y2 JP2549712 Y2 JP 2549712Y2
- Authority
- JP
- Japan
- Prior art keywords
- inner electrode
- radiation source
- ion chamber
- holding plate
- smoke detector
- 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 - Lifetime
Links
- 239000000779 smoke Substances 0.000 title claims description 29
- 230000005855 radiation Effects 0.000 claims description 39
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 210000000078 claw Anatomy 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 description 13
- 238000005452 bending Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990017924U JP2549712Y2 (ja) | 1990-02-23 | 1990-02-23 | イオン化式煙感知器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990017924U JP2549712Y2 (ja) | 1990-02-23 | 1990-02-23 | イオン化式煙感知器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03110596U JPH03110596U (enrdf_load_stackoverflow) | 1991-11-13 |
| JP2549712Y2 true JP2549712Y2 (ja) | 1997-09-30 |
Family
ID=31521101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990017924U Expired - Lifetime JP2549712Y2 (ja) | 1990-02-23 | 1990-02-23 | イオン化式煙感知器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2549712Y2 (enrdf_load_stackoverflow) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440789Y2 (enrdf_load_stackoverflow) * | 1974-10-21 | 1979-11-30 |
-
1990
- 1990-02-23 JP JP1990017924U patent/JP2549712Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03110596U (enrdf_load_stackoverflow) | 1991-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |