JPS53100295A - Ionization type smoke detector - Google Patents
Ionization type smoke detectorInfo
- Publication number
- JPS53100295A JPS53100295A JP1531577A JP1531577A JPS53100295A JP S53100295 A JPS53100295 A JP S53100295A JP 1531577 A JP1531577 A JP 1531577A JP 1531577 A JP1531577 A JP 1531577A JP S53100295 A JPS53100295 A JP S53100295A
- Authority
- JP
- Japan
- Prior art keywords
- smoke detector
- type smoke
- ionization type
- ionization
- dissipation
- 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
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
PURPOSE: To prevent the dissipation of radio isotope (RI) by enclosing smoke sensing part by a shield case of heat-resistant metal.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1531577A JPS53100295A (en) | 1977-02-14 | 1977-02-14 | Ionization type smoke detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1531577A JPS53100295A (en) | 1977-02-14 | 1977-02-14 | Ionization type smoke detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53100295A true JPS53100295A (en) | 1978-09-01 |
Family
ID=11885339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1531577A Pending JPS53100295A (en) | 1977-02-14 | 1977-02-14 | Ionization type smoke detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53100295A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6044194U (en) * | 1983-09-05 | 1985-03-28 | 能美防災工業株式会社 | Heat-resistant case for ionization smoke detector |
JPS618397U (en) * | 1984-06-19 | 1986-01-18 | ホーチキ株式会社 | fire detector |
JPS6457592U (en) * | 1987-10-05 | 1989-04-10 | ||
JPH02178800A (en) * | 1988-12-28 | 1990-07-11 | Hochiki Corp | Ionization type smoke sensor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5082999A (en) * | 1970-07-23 | 1975-07-04 | Cerberus Ag |
-
1977
- 1977-02-14 JP JP1531577A patent/JPS53100295A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5082999A (en) * | 1970-07-23 | 1975-07-04 | Cerberus Ag |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6044194U (en) * | 1983-09-05 | 1985-03-28 | 能美防災工業株式会社 | Heat-resistant case for ionization smoke detector |
JPH0441437Y2 (en) * | 1983-09-05 | 1992-09-29 | ||
JPS618397U (en) * | 1984-06-19 | 1986-01-18 | ホーチキ株式会社 | fire detector |
JPS6457592U (en) * | 1987-10-05 | 1989-04-10 | ||
JPH057674Y2 (en) * | 1987-10-05 | 1993-02-25 | ||
JPH02178800A (en) * | 1988-12-28 | 1990-07-11 | Hochiki Corp | Ionization type smoke sensor |
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