FI59498C - Ionisationsbrandalarmanordning - Google Patents
Ionisationsbrandalarmanordning Download PDFInfo
- Publication number
- FI59498C FI59498C FI1943/73A FI194373A FI59498C FI 59498 C FI59498 C FI 59498C FI 1943/73 A FI1943/73 A FI 1943/73A FI 194373 A FI194373 A FI 194373A FI 59498 C FI59498 C FI 59498C
- Authority
- FI
- Finland
- Prior art keywords
- fire alarm
- ionization
- threshold
- signal
- alarm according
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 30
- 230000005669 field effect Effects 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000000779 smoke Substances 0.000 description 5
- 239000000443 aerosol Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241000202252 Cerberus Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910005540 GaP Inorganic materials 0.000 description 1
- 101000727979 Homo sapiens Remodeling and spacing factor 1 Proteins 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 102100029771 Remodeling and spacing factor 1 Human genes 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1065572 | 1972-07-17 | ||
| CH1065572 | 1972-07-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI59498B FI59498B (fi) | 1981-04-30 |
| FI59498C true FI59498C (fi) | 1981-08-10 |
Family
ID=4365446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI1943/73A FI59498C (fi) | 1972-07-17 | 1973-06-15 | Ionisationsbrandalarmanordning |
Country Status (19)
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5617815Y2 (enrdf_load_stackoverflow) * | 1974-07-10 | 1981-04-24 | ||
| JPS5150786A (ja) * | 1974-10-29 | 1976-05-04 | Mitsubishi Electric Corp | Ionkashikikemuritanchiki |
| JPS52142999A (en) * | 1976-05-24 | 1977-11-29 | Nohmi Bosai Kogyo Co Ltd | Fire alarm facility |
| DE2707409C2 (de) * | 1977-02-21 | 1985-02-21 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Ionisationsbrandmelder |
| 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 (de) * | 1978-07-17 | 1982-05-14 | Cerberus Ag | Gas- und/oder brandmeldeanlage. |
| JPS5555752U (enrdf_load_stackoverflow) * | 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 (de) * | 1980-05-09 | 1981-11-25 | Cerberus Ag | Verfahren zur Brandmeldung und Brandmeldeanlage |
| JPH079680B2 (ja) * | 1985-04-01 | 1995-02-01 | ホーチキ株式会社 | アナログ火災報知装置 |
| CH669859A5 (enrdf_load_stackoverflow) * | 1986-06-03 | 1989-04-14 | Cerberus Ag | |
| DE58905587D1 (de) * | 1988-03-30 | 1993-10-21 | Cerberus Ag | Verfahren zur Brandfrüherkennung. |
| JPH0259461U (enrdf_load_stackoverflow) * | 1988-10-21 | 1990-05-01 | ||
| RU2182366C2 (ru) * | 2000-03-29 | 2002-05-10 | Институт физико-технических проблем | Ионизационный пожарный извещатель |
| 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 |
| CA3122468C (en) | 2013-10-07 | 2023-10-17 | Google Llc | Smart-home hazard detector providing non-alarm status signals at opportune moments |
| 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/xx not_active IP Right Cessation
-
1973
- 1973-05-24 AT AT456073A patent/AT339777B/de not_active IP Right Cessation
- 1973-05-30 IT IT24820/73A patent/IT988800B/it active
- 1973-06-06 DE DE2328872A patent/DE2328872C3/de not_active Expired
- 1973-06-14 ES ES415905A patent/ES415905A1/es not_active Expired
- 1973-06-15 FI FI1943/73A patent/FI59498C/fi 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/xx 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 BR BR5317/73A patent/BR7305317D0/pt unknown
- 1973-07-16 DK DK393473AA patent/DK138714B/da not_active IP Right Cessation
- 1973-07-16 SE SE7309920A patent/SE392357B/xx unknown
- 1973-07-16 NO NO2887/73A patent/NO136269C/no unknown
- 1973-07-17 JP JP48080012A patent/JPS4970691A/ja active Pending
- 1973-07-17 GB GB3409373A patent/GB1412164A/en not_active Expired
- 1973-07-17 ZA ZA734853A patent/ZA734853B/xx unknown
-
1980
- 1980-10-09 HK HK573/80A patent/HK57380A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2193224B1 (enrdf_load_stackoverflow) | 1978-12-29 |
| US3909813A (en) | 1975-09-30 |
| ZA734853B (en) | 1974-06-26 |
| AU474603B2 (en) | 1976-07-29 |
| CA1018680A (en) | 1977-10-04 |
| DK138714B (da) | 1978-10-16 |
| SE392357B (sv) | 1977-03-21 |
| DK138714C (enrdf_load_stackoverflow) | 1979-03-19 |
| NO136269C (no) | 1977-08-17 |
| DE2328872A1 (de) | 1974-01-31 |
| FR2193224A1 (enrdf_load_stackoverflow) | 1974-02-15 |
| AT339777B (de) | 1977-11-10 |
| GB1412164A (en) | 1975-10-29 |
| IT988800B (it) | 1975-04-30 |
| ES415905A1 (es) | 1976-02-01 |
| HK57380A (en) | 1980-10-16 |
| NO136269B (enrdf_load_stackoverflow) | 1977-05-02 |
| DE2328872C3 (de) | 1981-01-08 |
| BR7305317D0 (pt) | 1974-08-22 |
| FI59498B (fi) | 1981-04-30 |
| JPS4970691A (enrdf_load_stackoverflow) | 1974-07-09 |
| DE2328872B2 (de) | 1980-05-14 |
| BE801719A (fr) | 1973-10-15 |
| CH547532A (de) | 1974-03-29 |
| AU5798673A (en) | 1975-01-16 |
| ATA456073A (de) | 1977-02-15 |
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