SE392357B - FIRE SURVEILLANCE DEVICE WITH AT LEAST ONE IONIZATION CHAMBER - Google Patents
FIRE SURVEILLANCE DEVICE WITH AT LEAST ONE IONIZATION CHAMBERInfo
- Publication number
- SE392357B SE392357B SE7309920A SE7309920A SE392357B SE 392357 B SE392357 B SE 392357B SE 7309920 A SE7309920 A SE 7309920A SE 7309920 A SE7309920 A SE 7309920A SE 392357 B SE392357 B SE 392357B
- Authority
- SE
- Sweden
- Prior art keywords
- ionization chamber
- surveillance device
- fire surveillance
- fire
- ionization
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
- Printing Plates And Materials Therefor (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1065572 | 1972-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE392357B true SE392357B (en) | 1977-03-21 |
Family
ID=4365446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7309920A SE392357B (en) | 1972-07-17 | 1973-07-16 | FIRE SURVEILLANCE DEVICE WITH AT LEAST ONE IONIZATION CHAMBER |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US3909813A (en) |
| JP (1) | JPS4970691A (en) |
| AT (1) | AT339777B (en) |
| AU (1) | AU474603B2 (en) |
| BE (1) | BE801719A (en) |
| BR (1) | BR7305317D0 (en) |
| CA (1) | CA1018680A (en) |
| CH (1) | CH547532A (en) |
| DE (1) | DE2328872C3 (en) |
| DK (1) | DK138714B (en) |
| ES (1) | ES415905A1 (en) |
| FI (1) | FI59498C (en) |
| FR (1) | FR2193224B1 (en) |
| GB (1) | GB1412164A (en) |
| HK (1) | HK57380A (en) |
| IT (1) | IT988800B (en) |
| NO (1) | NO136269C (en) |
| SE (1) | SE392357B (en) |
| ZA (1) | ZA734853B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5617815Y2 (en) * | 1974-07-10 | 1981-04-24 | ||
| JPS5150786A (en) * | 1974-10-29 | 1976-05-04 | Mitsubishi Electric Corp | IONKASHIKIKE MURITANCHIKI |
| JPS52142999A (en) * | 1976-05-24 | 1977-11-29 | Nohmi Bosai Kogyo Co Ltd | Fire alarm facility |
| DE2707409C2 (en) * | 1977-02-21 | 1985-02-21 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Ionization fire detector |
| US4207558A (en) * | 1978-04-03 | 1980-06-10 | Pittway Corporation | Interconnection circuit for a plurality of alarm units |
| USRE30620E (en) * | 1978-07-03 | 1981-05-19 | P. R. Mallory & Co. Inc. | High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means |
| CH629905A5 (en) * | 1978-07-17 | 1982-05-14 | Cerberus Ag | GAS AND / OR FIRE DETECTING SYSTEM. |
| JPS5555752U (en) * | 1978-10-12 | 1980-04-15 | ||
| US4223303A (en) * | 1978-12-11 | 1980-09-16 | General Electric Company | Alarm devices for interconnected multi-device systems |
| US4401978A (en) * | 1979-02-21 | 1983-08-30 | The Gamewell Corporation | Combination detector |
| EP0039761A3 (en) * | 1980-05-09 | 1981-11-25 | Cerberus Ag | Fire annunciating arrangement and method |
| JPH079680B2 (en) * | 1985-04-01 | 1995-02-01 | ホーチキ株式会社 | Analog fire alarm |
| CH669859A5 (en) * | 1986-06-03 | 1989-04-14 | Cerberus Ag | |
| EP0338218B1 (en) * | 1988-03-30 | 1993-09-15 | Cerberus Ag | Early fire detection method |
| JPH0259461U (en) * | 1988-10-21 | 1990-05-01 | ||
| US6753786B1 (en) | 2000-08-11 | 2004-06-22 | Walter Kidde Portable Equipment, Inc. | Microprocessor-based combination smoke and carbon monoxide detector having intelligent hush feature |
| US7068177B2 (en) * | 2002-09-19 | 2006-06-27 | Honeywell International, Inc. | Multi-sensor device and methods for fire detection |
| US20080030352A1 (en) * | 2006-02-27 | 2008-02-07 | Thorn Security Limited | Methods and systems for gas detection |
| CA2926811C (en) | 2013-10-07 | 2023-03-21 | Google Inc. | Smart-home hazard detector providing context specific features and/or pre-alarm configurations |
| US9685061B2 (en) | 2015-05-20 | 2017-06-20 | Google Inc. | Event prioritization and user interfacing for hazard detection in multi-room smart-home environment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665441A (en) * | 1970-09-14 | 1972-05-23 | Gen Signal Corp | Method and apparatus for detecting aerosols |
-
1972
- 1972-07-17 CH CH1065572A patent/CH547532A/en not_active IP Right Cessation
-
1973
- 1973-05-24 AT AT456073A patent/AT339777B/en not_active IP Right Cessation
- 1973-05-30 IT IT24820/73A patent/IT988800B/en active
- 1973-06-06 DE DE2328872A patent/DE2328872C3/en not_active Expired
- 1973-06-14 ES ES415905A patent/ES415905A1/en not_active Expired
- 1973-06-15 FI FI1943/73A patent/FI59498C/en active
- 1973-06-27 FR FR7323459A patent/FR2193224B1/fr not_active Expired
- 1973-06-28 US US374310A patent/US3909813A/en not_active Expired - Lifetime
- 1973-06-29 BE BE132959A patent/BE801719A/en not_active IP Right Cessation
- 1973-07-11 AU AU57987/73A patent/AU474603B2/en not_active Expired
- 1973-07-13 CA CA176,433A patent/CA1018680A/en not_active Expired
- 1973-07-16 DK DK393473AA patent/DK138714B/en not_active IP Right Cessation
- 1973-07-16 BR BR5317/73A patent/BR7305317D0/en unknown
- 1973-07-16 NO NO2887/73A patent/NO136269C/en unknown
- 1973-07-16 SE SE7309920A patent/SE392357B/en unknown
- 1973-07-17 GB GB3409373A patent/GB1412164A/en not_active Expired
- 1973-07-17 JP JP48080012A patent/JPS4970691A/ja active Pending
- 1973-07-17 ZA ZA734853A patent/ZA734853B/en unknown
-
1980
- 1980-10-09 HK HK573/80A patent/HK57380A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT988800B (en) | 1975-04-30 |
| NO136269C (en) | 1977-08-17 |
| DE2328872B2 (en) | 1980-05-14 |
| CA1018680A (en) | 1977-10-04 |
| FI59498C (en) | 1981-08-10 |
| AT339777B (en) | 1977-11-10 |
| HK57380A (en) | 1980-10-16 |
| CH547532A (en) | 1974-03-29 |
| BE801719A (en) | 1973-10-15 |
| AU474603B2 (en) | 1976-07-29 |
| ES415905A1 (en) | 1976-02-01 |
| NO136269B (en) | 1977-05-02 |
| ATA456073A (en) | 1977-02-15 |
| US3909813A (en) | 1975-09-30 |
| BR7305317D0 (en) | 1974-08-22 |
| DK138714C (en) | 1979-03-19 |
| DE2328872A1 (en) | 1974-01-31 |
| GB1412164A (en) | 1975-10-29 |
| FR2193224A1 (en) | 1974-02-15 |
| DE2328872C3 (en) | 1981-01-08 |
| FR2193224B1 (en) | 1978-12-29 |
| ZA734853B (en) | 1974-06-26 |
| AU5798673A (en) | 1975-01-16 |
| FI59498B (en) | 1981-04-30 |
| DK138714B (en) | 1978-10-16 |
| JPS4970691A (en) | 1974-07-09 |
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