JPS61180390U - - Google Patents
Info
- Publication number
- JPS61180390U JPS61180390U JP6165585U JP6165585U JPS61180390U JP S61180390 U JPS61180390 U JP S61180390U JP 6165585 U JP6165585 U JP 6165585U JP 6165585 U JP6165585 U JP 6165585U JP S61180390 U JPS61180390 U JP S61180390U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- fire alarm
- sound wave
- waves
- sound waves
- 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
- 239000002245 particle Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6165585U JPS61180390U (US06262066-20010717-C00424.png) | 1985-04-24 | 1985-04-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6165585U JPS61180390U (US06262066-20010717-C00424.png) | 1985-04-24 | 1985-04-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61180390U true JPS61180390U (US06262066-20010717-C00424.png) | 1986-11-11 |
Family
ID=30590129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6165585U Pending JPS61180390U (US06262066-20010717-C00424.png) | 1985-04-24 | 1985-04-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61180390U (US06262066-20010717-C00424.png) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007132671A1 (ja) * | 2006-05-12 | 2007-11-22 | Panasonic Electric Works Co., Ltd. | 音波式煙感知器 |
JP2008234018A (ja) * | 2007-03-16 | 2008-10-02 | Matsushita Electric Works Ltd | 火災感知器 |
JP2008234020A (ja) * | 2007-03-16 | 2008-10-02 | Matsushita Electric Works Ltd | 火災感知器 |
JP2008234021A (ja) * | 2007-03-16 | 2008-10-02 | Matsushita Electric Works Ltd | 火災感知器 |
WO2009054359A1 (ja) * | 2007-10-26 | 2009-04-30 | Panasonic Electric Works Co., Ltd. | 火災警報システム |
JPWO2007132671A1 (ja) * | 2006-05-12 | 2009-09-24 | パナソニック電工株式会社 | 音波式煙感知器 |
-
1985
- 1985-04-24 JP JP6165585U patent/JPS61180390U/ja active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007132671A1 (ja) * | 2006-05-12 | 2007-11-22 | Panasonic Electric Works Co., Ltd. | 音波式煙感知器 |
JPWO2007132671A1 (ja) * | 2006-05-12 | 2009-09-24 | パナソニック電工株式会社 | 音波式煙感知器 |
JP4826631B2 (ja) * | 2006-05-12 | 2011-11-30 | パナソニック電工株式会社 | 音波式煙感知器 |
US8253578B2 (en) | 2006-05-12 | 2012-08-28 | Panasonic Corporation | Smoke sensor of the sound wave type including a smoke density estimation unit |
JP2008234018A (ja) * | 2007-03-16 | 2008-10-02 | Matsushita Electric Works Ltd | 火災感知器 |
JP2008234020A (ja) * | 2007-03-16 | 2008-10-02 | Matsushita Electric Works Ltd | 火災感知器 |
JP2008234021A (ja) * | 2007-03-16 | 2008-10-02 | Matsushita Electric Works Ltd | 火災感知器 |
WO2009054359A1 (ja) * | 2007-10-26 | 2009-04-30 | Panasonic Electric Works Co., Ltd. | 火災警報システム |
US8519854B2 (en) | 2007-10-26 | 2013-08-27 | Panasonic Corporation | Fire alarm system |