SE354139B - - Google Patents
Info
- Publication number
- SE354139B SE354139B SE08660/70A SE866070A SE354139B SE 354139 B SE354139 B SE 354139B SE 08660/70 A SE08660/70 A SE 08660/70A SE 866070 A SE866070 A SE 866070A SE 354139 B SE354139 B SE 354139B
- Authority
- SE
- Sweden
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
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)
- Fire Alarms (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH966269A CH497755A (de) | 1969-06-24 | 1969-06-24 | Ionisationsfeuermelder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE354139B true SE354139B (de) | 1973-02-26 |
Family
ID=4354339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE08660/70A SE354139B (de) | 1969-06-24 | 1970-06-23 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3676680A (de) |
| BE (1) | BE752058A (de) |
| CH (1) | CH497755A (de) |
| DE (1) | DE2029794C3 (de) |
| FR (1) | FR2060523A5 (de) |
| GB (1) | GB1291755A (de) |
| HK (1) | HK10478A (de) |
| NL (1) | NL168976C (de) |
| NO (1) | NO125704B (de) |
| SE (1) | SE354139B (de) |
| YU (1) | YU33338B (de) |
| ZA (1) | ZA704145B (de) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO129270B (de) * | 1970-05-16 | 1974-03-18 | Preussag Ag Feuerschutz | |
| CA933679A (en) * | 1970-08-10 | 1973-09-11 | Nittan Company | Fire alarming system |
| US3964036A (en) * | 1972-11-15 | 1976-06-15 | Hochiki Corporation | Ionization smoke detector co-used to issue fire alarm and detect ambient atmosphere |
| US3866195A (en) * | 1973-05-07 | 1975-02-11 | Fire Alert Company | Combustion product detector and method of calibrating |
| US3906474A (en) * | 1973-05-07 | 1975-09-16 | Fire Alert Company | Combustion products alarm |
| US4023152A (en) * | 1973-10-01 | 1977-05-10 | Matsushita Electric Works, Ltd. | Ionization type smoke sensing device |
| US3944859A (en) * | 1974-09-03 | 1976-03-16 | Rca Corporation | Bridge-balance detection circuit |
| USRE30117E (en) * | 1975-07-25 | 1979-10-16 | Cerberus Ag | Ionization-type fire or smoke sensing system |
| US4038649A (en) * | 1975-09-16 | 1977-07-26 | Emhart Industries, Inc. | Smoke detection alarm device |
| DE2713280C3 (de) * | 1977-03-25 | 1986-10-23 | Esser Sicherheitstechnik GmbH & Co KG, 4040 Neuss | Funktionsüberprüfbare Feuermelderanlage |
| JPS583195Y2 (ja) * | 1977-10-20 | 1983-01-20 | ツエルベルス・アクチェン・ゲゼルシャフト | イオン式火災感知器 |
| DE3004753C2 (de) * | 1980-02-08 | 1983-12-22 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Brandmeldeeinrichtung |
| NL180784C (nl) * | 1983-10-14 | 1987-04-16 | Nederlanden Staat | Gasgevoelige sensor. |
| US5189399A (en) * | 1989-02-18 | 1993-02-23 | Hartwig Beyersdorf | Method of operating an ionization smoke alarm and ionization smoke alarm |
| DE3904979A1 (de) * | 1989-02-18 | 1990-08-23 | Beyersdorf Hartwig | Verfahren zum betrieb eines ionisationsrauchmelders und ionisationsrauchmelder |
| DE4028167A1 (de) * | 1990-09-05 | 1992-03-12 | Esser Sicherheitstechnik | Ionisationsbrandmelder |
| US9437100B2 (en) * | 2013-11-02 | 2016-09-06 | Jeffrey D. Zwirn | Supervising alarm notification devices |
| CN112946458B (zh) * | 2021-02-22 | 2024-01-12 | 重庆四联测控技术有限公司 | 一种压力变送器的强制报警电流输出系统和方法 |
| CN114446002B (zh) * | 2022-01-17 | 2023-10-31 | 厦门理工学院 | 火灾在线监测方法、装置、介质及系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2646556A (en) * | 1950-06-17 | 1953-07-21 | C O Two Fire Equipment Co | Supervised alarm system |
| JPS446089Y1 (de) * | 1966-03-30 | 1969-03-05 | ||
| US3514603A (en) * | 1966-12-22 | 1970-05-26 | Johnson Service Co | Ionization chamber detection apparatus having a low voltage source means |
-
1969
- 1969-06-24 CH CH966269A patent/CH497755A/de not_active IP Right Cessation
-
1970
- 1970-06-08 US US44091A patent/US3676680A/en not_active Expired - Lifetime
- 1970-06-10 NL NLAANVRAGE7008421,A patent/NL168976C/xx active
- 1970-06-16 DE DE2029794A patent/DE2029794C3/de not_active Expired
- 1970-06-16 BE BE752058D patent/BE752058A/nl unknown
- 1970-06-17 FR FR7022334A patent/FR2060523A5/fr not_active Expired
- 1970-06-17 ZA ZA704145A patent/ZA704145B/xx unknown
- 1970-06-22 YU YU1575/70A patent/YU33338B/xx unknown
- 1970-06-23 NO NO2432/70A patent/NO125704B/no unknown
- 1970-06-23 SE SE08660/70A patent/SE354139B/xx unknown
- 1970-06-24 GB GB30653/70A patent/GB1291755A/en not_active Expired
-
1978
- 1978-02-23 HK HK104/78A patent/HK10478A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL168976C (nl) | 1982-05-17 |
| NL7008421A (de) | 1970-12-29 |
| DE2029794B2 (de) | 1973-04-26 |
| BE752058A (nl) | 1970-12-01 |
| DE2029794A1 (de) | 1971-01-07 |
| HK10478A (en) | 1978-03-03 |
| US3676680A (en) | 1972-07-11 |
| FR2060523A5 (de) | 1971-06-18 |
| NO125704B (de) | 1972-10-16 |
| CH497755A (de) | 1970-10-15 |
| YU33338B (en) | 1976-10-31 |
| ZA704145B (en) | 1971-03-31 |
| YU157570A (en) | 1976-04-30 |
| DE2029794C3 (de) | 1979-10-11 |
| GB1291755A (en) | 1972-10-04 |