JPS531000A - Automatic fire alarm - Google Patents
Automatic fire alarmInfo
- Publication number
- JPS531000A JPS531000A JP7442876A JP7442876A JPS531000A JP S531000 A JPS531000 A JP S531000A JP 7442876 A JP7442876 A JP 7442876A JP 7442876 A JP7442876 A JP 7442876A JP S531000 A JPS531000 A JP S531000A
- Authority
- JP
- Japan
- Prior art keywords
- fire alarm
- automatic fire
- conduction
- making
- zener diode
- 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
Landscapes
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
PURPOSE: To enable simple individual discrimination by applying voltage that is of reversed polarity and gradually increasing when one of detectors operates and by making a specified indicator of the detected site perform indicating action when Zener diode comes to conduction.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7442876A JPS531000A (en) | 1976-06-25 | 1976-06-25 | Automatic fire alarm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7442876A JPS531000A (en) | 1976-06-25 | 1976-06-25 | Automatic fire alarm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS531000A true JPS531000A (en) | 1978-01-07 |
Family
ID=13546920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7442876A Pending JPS531000A (en) | 1976-06-25 | 1976-06-25 | Automatic fire alarm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS531000A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58134393A (en) * | 1982-02-05 | 1983-08-10 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Alarm control central unit |
JPS6214594U (en) * | 1985-07-11 | 1987-01-28 |
-
1976
- 1976-06-25 JP JP7442876A patent/JPS531000A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58134393A (en) * | 1982-02-05 | 1983-08-10 | エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン | Alarm control central unit |
JPH055149B2 (en) * | 1982-02-05 | 1993-01-21 | Fuiritsupusu Furuuiranpenfuaburiken Nv | |
JPS6214594U (en) * | 1985-07-11 | 1987-01-28 |
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