CS216229B2 - Ionization fire detector - Google Patents
Ionization fire detector Download PDFInfo
- Publication number
- CS216229B2 CS216229B2 CS742663A CS266374A CS216229B2 CS 216229 B2 CS216229 B2 CS 216229B2 CS 742663 A CS742663 A CS 742663A CS 266374 A CS266374 A CS 266374A CS 216229 B2 CS216229 B2 CS 216229B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- housing
- electrode
- cover
- wall
- fire detector
- Prior art date
Links
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 239000012811 non-conductive material Substances 0.000 claims abstract 2
- 239000000428 dust Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000002285 radioactive effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000000151 deposition Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 241000202252 Cerberus Species 0.000 abstract 1
- 230000005865 ionizing radiation Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000012857 radioactive material Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 description 2
- LXQXZNRPTYVCNG-YPZZEJLDSA-N americium-241 Chemical compound [241Am] LXQXZNRPTYVCNG-YPZZEJLDSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000926 separation method Methods 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
- 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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH551973A CH551057A (de) | 1973-04-17 | 1973-04-17 | Ionisationsfeuermelder. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS216229B2 true CS216229B2 (en) | 1982-10-29 |
Family
ID=4294978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS742663A CS216229B2 (en) | 1973-04-17 | 1974-04-12 | Ionization fire detector |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US3908957A (en, 2012) |
| JP (1) | JPS49131798A (en, 2012) |
| BE (1) | BE813068A (en, 2012) |
| BR (1) | BR7403018D0 (en, 2012) |
| CA (1) | CA998783A (en, 2012) |
| CH (1) | CH551057A (en, 2012) |
| CS (1) | CS216229B2 (en, 2012) |
| DD (1) | DD111483A5 (en, 2012) |
| DE (1) | DE2415479C3 (en, 2012) |
| DK (1) | DK150415C (en, 2012) |
| ES (1) | ES424918A1 (en, 2012) |
| FI (1) | FI61768C (en, 2012) |
| FR (1) | FR2226714B1 (en, 2012) |
| GB (1) | GB1430891A (en, 2012) |
| HU (1) | HU175210B (en, 2012) |
| IL (1) | IL44507A (en, 2012) |
| IT (1) | IT1006402B (en, 2012) |
| NL (1) | NL177633C (en, 2012) |
| NO (1) | NO139581C (en, 2012) |
| PL (1) | PL90429B1 (en, 2012) |
| SE (1) | SE396491B (en, 2012) |
| YU (1) | YU35685B (en, 2012) |
| ZA (1) | ZA742077B (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ302438B6 (cs) * | 2002-06-15 | 2011-05-18 | Detector Technology Limited | Zpusob výroby vetšího poctu zdroju radioaktivity a zdroj radioaktivity |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2652970C3 (de) * | 1976-11-22 | 1979-09-06 | Hartwig Ing.(Grad.) 2409 Scharbeutz Beyersdorf | Ionisations-Brandmelder |
| US4150373A (en) * | 1977-01-27 | 1979-04-17 | Ried Jr Louis | Ionization particle detector |
| JPS6234399Y2 (en, 2012) * | 1980-03-31 | 1987-09-02 | ||
| CH648943A5 (de) | 1980-05-09 | 1985-04-15 | Cerberus Ag | Rauchmelder. |
| US4439683A (en) * | 1981-02-11 | 1984-03-27 | General Signal Corporation | Ionization smoke detector |
| US4488044A (en) * | 1981-11-20 | 1984-12-11 | Pittway Corporation | Ionization chamber for smoke detector and the like |
| FR2523309A1 (fr) * | 1982-03-09 | 1983-09-16 | Hugon Emile | Nouveau detecteur de fumees capacitif a modules interchangeables |
| US4529976A (en) * | 1982-10-29 | 1985-07-16 | Frederick M. Jameson | Smoke detector with masking shield |
| JPH044316Y2 (en, 2012) * | 1985-09-30 | 1992-02-07 | ||
| FR2594953B1 (fr) * | 1986-02-25 | 1989-05-05 | Lewiner Jacques | Detecteur de fumee a chambre d'ionisation |
| JPS63239592A (ja) * | 1987-03-27 | 1988-10-05 | ホーチキ株式会社 | 光電式煙感知器 |
| DE58905587D1 (de) * | 1988-03-30 | 1993-10-21 | Cerberus Ag | Verfahren zur Brandfrüherkennung. |
| US5327119A (en) * | 1989-12-22 | 1994-07-05 | Hochiki Kabushiki Kaisha | Ionizing smoke sensor |
| CH681932A5 (en, 2012) * | 1990-12-04 | 1993-06-15 | Cerberus Ag | |
| AU667102B2 (en) * | 1992-05-14 | 1996-03-07 | Vision Systems Limited | Gas sampling point for smoke/pollution detection systems |
| WO1993023735A1 (en) * | 1992-05-14 | 1993-11-25 | I.E.I. Pty. Ltd. | Gas sampling point for smoke/pollution detection systems |
| US5856784A (en) * | 1997-04-23 | 1999-01-05 | Pittway Corporation | Low profile ionization chamber |
| US6057774A (en) * | 1999-01-21 | 2000-05-02 | Brk Brands, Inc. | Smoke alarm with anti-dust screen |
| US9013316B2 (en) * | 2011-07-28 | 2015-04-21 | Finsecur | Smoke detector |
| GB201219488D0 (en) | 2012-10-30 | 2012-12-12 | Univ Sussex | Apparatus for sensing ionic current and ionising radiation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3319069A (en) * | 1964-08-27 | 1967-05-09 | American District Telegraph Co | Smoke detecting radiation sensitive fire alarm system |
| CH475614A (de) * | 1968-06-18 | 1969-07-15 | Cerberus Ag Werke Fuer Elektro | Ionisationsfeuermelder |
| GB1277091A (en) * | 1968-07-11 | 1972-06-07 | Nittan Co Ltd | Ionization type smoke detectors |
| CH491449A (de) * | 1969-05-19 | 1970-05-31 | Cerberus Ag | Rauchdetektoranordnung mit mindestens einer Rauchmesskammer |
| CH486082A (de) * | 1969-05-19 | 1970-02-15 | Cerberus Ag | Ionisationsfeuermelder |
| CH508251A (de) * | 1970-07-23 | 1971-05-31 | Cerberus Ag | Ionisationsfeuermelder |
| US3728706A (en) * | 1970-09-28 | 1973-04-17 | Gen Signal Corp | System for indicating aerosols in the atmosphere |
| BE793205A (fr) * | 1971-12-30 | 1973-04-16 | Preussag Ag Feuerschutz | Avertisseur d'incendie a ionisation |
-
1973
- 1973-04-17 CH CH551973A patent/CH551057A/xx not_active IP Right Cessation
-
1974
- 1974-03-27 IL IL44507A patent/IL44507A/en unknown
- 1974-03-29 YU YU891/74A patent/YU35685B/xx unknown
- 1974-03-29 BE BE142655A patent/BE813068A/xx not_active IP Right Cessation
- 1974-03-29 DE DE2415479A patent/DE2415479C3/de not_active Expired
- 1974-04-01 FR FR7411564A patent/FR2226714B1/fr not_active Expired
- 1974-04-02 ZA ZA00742077A patent/ZA742077B/xx unknown
- 1974-04-03 JP JP49037056A patent/JPS49131798A/ja active Pending
- 1974-04-03 ES ES424918A patent/ES424918A1/es not_active Expired
- 1974-04-04 US US457841A patent/US3908957A/en not_active Expired - Lifetime
- 1974-04-08 NL NLAANVRAGE7404783,A patent/NL177633C/xx not_active IP Right Cessation
- 1974-04-09 IT IT7421073A patent/IT1006402B/it active
- 1974-04-10 SE SE7404871A patent/SE396491B/xx not_active IP Right Cessation
- 1974-04-11 FI FI1124/74A patent/FI61768C/fi active
- 1974-04-11 CA CA197,527A patent/CA998783A/en not_active Expired
- 1974-04-12 CS CS742663A patent/CS216229B2/cs unknown
- 1974-04-15 DD DD177896A patent/DD111483A5/xx unknown
- 1974-04-16 BR BR3018/74A patent/BR7403018D0/pt unknown
- 1974-04-16 PL PL1974170389A patent/PL90429B1/pl unknown
- 1974-04-16 DK DK208174A patent/DK150415C/da not_active IP Right Cessation
- 1974-04-16 NO NO741357A patent/NO139581C/no unknown
- 1974-04-17 HU HU74CE995A patent/HU175210B/hu unknown
- 1974-04-17 GB GB1684874A patent/GB1430891A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ302438B6 (cs) * | 2002-06-15 | 2011-05-18 | Detector Technology Limited | Zpusob výroby vetšího poctu zdroju radioaktivity a zdroj radioaktivity |
Also Published As
| Publication number | Publication date |
|---|---|
| YU35685B (en) | 1981-04-30 |
| FI61768C (fi) | 1982-09-10 |
| US3908957A (en) | 1975-09-30 |
| GB1430891A (en) | 1976-04-07 |
| DK150415B (da) | 1987-02-23 |
| SE396491B (sv) | 1977-09-19 |
| FR2226714B1 (en, 2012) | 1979-03-16 |
| AU6753274A (en) | 1975-10-09 |
| JPS49131798A (en, 2012) | 1974-12-17 |
| ZA742077B (en) | 1975-04-30 |
| PL90429B1 (en, 2012) | 1977-01-31 |
| BR7403018D0 (pt) | 1974-11-19 |
| HU175210B (hu) | 1980-06-28 |
| NL177633C (nl) | 1985-10-16 |
| NO741357L (no) | 1974-10-18 |
| BE813068A (fr) | 1974-07-15 |
| FR2226714A1 (en, 2012) | 1974-11-15 |
| CH551057A (de) | 1974-06-28 |
| NL7404783A (en, 2012) | 1974-10-21 |
| DD111483A5 (en, 2012) | 1975-02-12 |
| NL177633B (nl) | 1985-05-17 |
| IL44507A (en) | 1977-07-31 |
| DE2415479A1 (de) | 1974-11-14 |
| NO139581B (no) | 1978-12-27 |
| DE2415479B2 (de) | 1980-09-04 |
| IT1006402B (it) | 1976-09-30 |
| DE2415479C3 (de) | 1987-12-03 |
| CA998783A (en) | 1976-10-19 |
| NO139581C (no) | 1979-04-04 |
| YU89174A (en) | 1980-09-25 |
| ES424918A1 (es) | 1976-05-16 |
| DK150415C (da) | 1987-07-13 |
| FI61768B (fi) | 1982-05-31 |
| IL44507A0 (en) | 1974-06-30 |
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