ZA741787B - Improvements in ionization fire alarms - Google Patents
Improvements in ionization fire alarmsInfo
- Publication number
- ZA741787B ZA741787B ZA00741787A ZA741787A ZA741787B ZA 741787 B ZA741787 B ZA 741787B ZA 00741787 A ZA00741787 A ZA 00741787A ZA 741787 A ZA741787 A ZA 741787A ZA 741787 B ZA741787 B ZA 741787B
- Authority
- ZA
- South Africa
- Prior art keywords
- fire alarms
- ionization fire
- ionization
- alarms
- fire
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH474173A CH554033A (de) | 1973-04-03 | 1973-04-03 | Iomisations-feuermelde-einrichtung. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA741787B true ZA741787B (en) | 1975-03-26 |
Family
ID=4281699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00741787A ZA741787B (en) | 1973-04-03 | 1974-03-19 | Improvements in ionization fire alarms |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS503300A (da) |
| CH (1) | CH554033A (da) |
| DE (1) | DE2412557C3 (da) |
| DK (1) | DK141948B (da) |
| FI (1) | FI57496C (da) |
| FR (1) | FR2224819B1 (da) |
| GB (1) | GB1432531A (da) |
| NO (1) | NO137666C (da) |
| SE (1) | SE389570B (da) |
| ZA (1) | ZA741787B (da) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE874157A (fr) * | 1979-02-14 | 1979-05-29 | Inst Nat Radio Elements | Detecteur ionique |
| US4488044A (en) * | 1981-11-20 | 1984-12-11 | Pittway Corporation | Ionization chamber for smoke detector and the like |
| AT378431B (de) * | 1983-06-30 | 1985-08-12 | Siemens Ag Oesterreich | Probenkammer herkoemmlicher groesse zum einbau eines ionisations-rauchmelder-einsatzes |
| JPS60135757A (ja) * | 1983-12-23 | 1985-07-19 | Hochiki Corp | ガスセンサ |
| NO158391C (no) * | 1985-02-08 | 1988-08-31 | Flaekt Ab | Brannvarslingssystem for oppholdsrom. |
| EP0405473A3 (en) * | 1989-06-28 | 1991-05-02 | Pittway Corporation | Low profile detector with multi-sided source |
| JP2520357B2 (ja) * | 1993-01-29 | 1996-07-31 | 三洋電機株式会社 | 自動洗髪機 |
| JP3714926B2 (ja) | 2002-08-22 | 2005-11-09 | ホーチキ株式会社 | サンプリング管式煙検知器 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL224264A (da) * | 1957-10-24 | |||
| CH486082A (de) * | 1969-05-19 | 1970-02-15 | Cerberus Ag | Ionisationsfeuermelder |
-
1973
- 1973-04-03 CH CH474173A patent/CH554033A/xx not_active IP Right Cessation
-
1974
- 1974-03-15 DE DE2412557A patent/DE2412557C3/de not_active Expired
- 1974-03-18 FR FR7409097A patent/FR2224819B1/fr not_active Expired
- 1974-03-19 ZA ZA00741787A patent/ZA741787B/xx unknown
- 1974-04-02 FI FI1013/74A patent/FI57496C/fi active
- 1974-04-02 SE SE7404420A patent/SE389570B/xx unknown
- 1974-04-02 JP JP49036692A patent/JPS503300A/ja active Pending
- 1974-04-02 DK DK182774AA patent/DK141948B/da not_active IP Right Cessation
- 1974-04-02 NO NO741189A patent/NO137666C/no unknown
- 1974-04-03 GB GB1484074A patent/GB1432531A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2412557A1 (de) | 1974-10-24 |
| CH554033A (de) | 1974-09-13 |
| NO137666C (no) | 1978-04-12 |
| DK141948C (da) | 1980-12-01 |
| JPS503300A (da) | 1975-01-14 |
| FI57496B (fi) | 1980-04-30 |
| AU6701374A (en) | 1975-09-25 |
| FI57496C (fi) | 1980-08-11 |
| NO741189L (no) | 1974-10-04 |
| DE2412557C3 (de) | 1982-02-18 |
| FR2224819B1 (da) | 1980-01-04 |
| DE2412557B2 (de) | 1981-06-19 |
| DK141948B (da) | 1980-07-21 |
| NO137666B (no) | 1977-12-19 |
| SE389570B (sv) | 1976-11-08 |
| FR2224819A1 (da) | 1974-10-31 |
| GB1432531A (en) | 1976-04-22 |
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