SE438385B - Jonisationsbrandgivare - Google Patents
JonisationsbrandgivareInfo
- Publication number
- SE438385B SE438385B SE7802995A SE7802995A SE438385B SE 438385 B SE438385 B SE 438385B SE 7802995 A SE7802995 A SE 7802995A SE 7802995 A SE7802995 A SE 7802995A SE 438385 B SE438385 B SE 438385B
- Authority
- SE
- Sweden
- Prior art keywords
- resistance
- measuring
- electrode
- resistor
- measuring chamber
- Prior art date
Links
- 238000009413 insulation Methods 0.000 claims description 13
- 230000000052 comparative effect Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 230000002285 radioactive effect Effects 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- YECIFGHRMFEPJK-UHFFFAOYSA-N lidocaine hydrochloride monohydrate Chemical compound O.[Cl-].CC[NH+](CC)CC(=O)NC1=C(C)C=CC=C1C YECIFGHRMFEPJK-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2711457A DE2711457C2 (de) | 1977-03-16 | 1977-03-16 | Ionisationsbrandmelder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7802995L SE7802995L (sv) | 1978-09-17 |
| SE438385B true SE438385B (sv) | 1985-04-15 |
Family
ID=6003797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7802995A SE438385B (sv) | 1977-03-16 | 1978-03-15 | Jonisationsbrandgivare |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT363014B (de) |
| BE (1) | BE864974A (de) |
| CH (1) | CH625071A5 (de) |
| DE (1) | DE2711457C2 (de) |
| DK (1) | DK142515C (de) |
| FR (1) | FR2384307A1 (de) |
| IT (1) | IT1094274B (de) |
| LU (1) | LU79226A1 (de) |
| NL (1) | NL7802821A (de) |
| NO (1) | NO141008C (de) |
| SE (1) | SE438385B (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA786519B (en) * | 1978-11-20 | 1980-02-27 | Anglo Amer Corp South Africa | Detector |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1490273A (fr) * | 1966-03-30 | 1967-07-28 | Nittan Co Ltd | Dispositif d'alarme automatique d'incendie utilisant un dispositif à ions |
| GB1280304A (en) * | 1968-09-26 | 1972-07-05 | Hochiki Co | A smoke sensing detector for smoke sensing apparatus |
| JPS529998B1 (de) * | 1969-04-25 | 1977-03-19 | ||
| ZA734995B (en) * | 1973-07-23 | 1974-10-30 | Anglo Amer Corp South Africa | Improvemente in or relating to fire detectors |
| ZA745453B (en) * | 1974-08-26 | 1976-04-28 | Anglo Amer Corp South Africa | Improvements in or relating to fire detectors |
-
1977
- 1977-03-16 DE DE2711457A patent/DE2711457C2/de not_active Expired
- 1977-12-09 CH CH1514277A patent/CH625071A5/de not_active IP Right Cessation
-
1978
- 1978-03-10 IT IT21086/78A patent/IT1094274B/it active
- 1978-03-13 AT AT0177678A patent/AT363014B/de not_active IP Right Cessation
- 1978-03-13 NO NO780876A patent/NO141008C/no unknown
- 1978-03-14 FR FR7807355A patent/FR2384307A1/fr active Granted
- 1978-03-14 LU LU79226A patent/LU79226A1/de unknown
- 1978-03-15 DK DK116878A patent/DK142515C/da not_active IP Right Cessation
- 1978-03-15 SE SE7802995A patent/SE438385B/sv not_active IP Right Cessation
- 1978-03-15 NL NL7802821A patent/NL7802821A/xx not_active Application Discontinuation
- 1978-03-16 BE BE186000A patent/BE864974A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AT363014B (de) | 1981-07-10 |
| IT7821086A0 (it) | 1978-03-10 |
| DK142515B (da) | 1980-11-10 |
| IT1094274B (it) | 1985-07-26 |
| DK116878A (da) | 1978-09-17 |
| DE2711457C2 (de) | 1985-06-27 |
| DE2711457A1 (de) | 1978-09-21 |
| FR2384307A1 (fr) | 1978-10-13 |
| DK142515C (da) | 1981-08-03 |
| FR2384307B1 (de) | 1982-07-16 |
| NO141008C (no) | 1979-12-19 |
| LU79226A1 (de) | 1978-11-27 |
| NL7802821A (nl) | 1978-09-19 |
| NO780876L (no) | 1978-09-19 |
| BE864974A (fr) | 1978-09-18 |
| CH625071A5 (en) | 1981-08-31 |
| NO141008B (no) | 1979-09-10 |
| ATA177678A (de) | 1980-11-15 |
| SE7802995L (sv) | 1978-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 7802995-6 Effective date: 19880126 Format of ref document f/p: F |