IT1006402B - IONIZATION FIRE WARNING - Google Patents
IONIZATION FIRE WARNINGInfo
- Publication number
- IT1006402B IT1006402B IT7421073A IT2107374A IT1006402B IT 1006402 B IT1006402 B IT 1006402B IT 7421073 A IT7421073 A IT 7421073A IT 2107374 A IT2107374 A IT 2107374A IT 1006402 B IT1006402 B IT 1006402B
- Authority
- IT
- Italy
- Prior art keywords
- fire warning
- ionization fire
- ionization
- warning
- fire
- 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
- 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 (en) | 1973-04-17 | 1973-04-17 | IONIZATION ALARM. |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1006402B true IT1006402B (en) | 1976-09-30 |
Family
ID=4294978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT7421073A IT1006402B (en) | 1973-04-17 | 1974-04-09 | IONIZATION FIRE WARNING |
Country Status (23)
Country | Link |
---|---|
US (1) | US3908957A (en) |
JP (1) | JPS49131798A (en) |
BE (1) | BE813068A (en) |
BR (1) | BR7403018D0 (en) |
CA (1) | CA998783A (en) |
CH (1) | CH551057A (en) |
CS (1) | CS216229B2 (en) |
DD (1) | DD111483A5 (en) |
DE (1) | DE2415479B2 (en) |
DK (1) | DK150415C (en) |
ES (1) | ES424918A1 (en) |
FI (1) | FI61768C (en) |
FR (1) | FR2226714B1 (en) |
GB (1) | GB1430891A (en) |
HU (1) | HU175210B (en) |
IL (1) | IL44507A (en) |
IT (1) | IT1006402B (en) |
NL (1) | NL177633C (en) |
NO (1) | NO139581C (en) |
PL (1) | PL90429B1 (en) |
SE (1) | SE396491B (en) |
YU (1) | YU35685B (en) |
ZA (1) | ZA742077B (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2652970C3 (en) * | 1976-11-22 | 1979-09-06 | Hartwig Ing.(Grad.) 2409 Scharbeutz Beyersdorf | Ionization fire detectors |
US4150373A (en) * | 1977-01-27 | 1979-04-17 | Ried Jr Louis | Ionization particle detector |
JPS6234399Y2 (en) * | 1980-03-31 | 1987-09-02 | ||
CH648943A5 (en) * | 1980-05-09 | 1985-04-15 | Cerberus Ag | SMOKE DETECTOR. |
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 (en) * | 1982-03-09 | 1983-09-16 | Hugon Emile | NEW CAPACITIVE SMOKE DETECTOR WITH INTERCHANGEABLE MODULES |
US4529976A (en) * | 1982-10-29 | 1985-07-16 | Frederick M. Jameson | Smoke detector with masking shield |
JPH044316Y2 (en) * | 1985-09-30 | 1992-02-07 | ||
FR2594953B1 (en) * | 1986-02-25 | 1989-05-05 | Lewiner Jacques | SMOKE DETECTOR WITH IONIZATION CHAMBER |
JPS63239592A (en) * | 1987-03-27 | 1988-10-05 | ホーチキ株式会社 | Photoelectric type smoke sensor |
DE58905587D1 (en) * | 1988-03-30 | 1993-10-21 | Cerberus Ag | Early fire detection procedures. |
US5327119A (en) * | 1989-12-22 | 1994-07-05 | Hochiki Kabushiki Kaisha | Ionizing smoke sensor |
CH681932A5 (en) * | 1990-12-04 | 1993-06-15 | Cerberus Ag | |
JPH07506671A (en) * | 1992-05-14 | 1995-07-20 | ビジョン システムズ インコーポレイティド | Gas sampling tip for smoke/pollution detection systems |
AU667102B2 (en) * | 1992-05-14 | 1996-03-07 | Vision Systems Limited | 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 |
GB0213854D0 (en) * | 2002-06-15 | 2002-07-24 | Aea Technology Plc | Radioactive sources |
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 (en) * | 1968-06-18 | 1969-07-15 | Cerberus Ag Werke Fuer Elektro | Ionization fire alarms |
GB1277091A (en) * | 1968-07-11 | 1972-06-07 | Nittan Co Ltd | Ionization type smoke detectors |
CH491449A (en) * | 1969-05-19 | 1970-05-31 | Cerberus Ag | Smoke detector arrangement with at least one smoke measuring chamber |
CH486082A (en) * | 1969-05-19 | 1970-02-15 | Cerberus Ag | Ionization fire alarms |
CH508251A (en) * | 1970-07-23 | 1971-05-31 | Cerberus Ag | Ionization fire alarms |
US3728706A (en) * | 1970-09-28 | 1973-04-17 | Gen Signal Corp | System for indicating aerosols in the atmosphere |
BE793205A (en) * | 1971-12-30 | 1973-04-16 | Preussag Ag Feuerschutz | IONIZATION FIRE ALARM |
-
1973
- 1973-04-17 CH CH551973A patent/CH551057A/en not_active IP Right Cessation
-
1974
- 1974-03-27 IL IL44507A patent/IL44507A/en unknown
- 1974-03-29 YU YU891/74A patent/YU35685B/en unknown
- 1974-03-29 DE DE2415479A patent/DE2415479B2/en active Granted
- 1974-03-29 BE BE142655A patent/BE813068A/en not_active IP Right Cessation
- 1974-04-01 FR FR7411564A patent/FR2226714B1/fr not_active Expired
- 1974-04-02 ZA ZA00742077A patent/ZA742077B/en unknown
- 1974-04-03 ES ES424918A patent/ES424918A1/en not_active Expired
- 1974-04-03 JP JP49037056A patent/JPS49131798A/ja active Pending
- 1974-04-04 US US457841A patent/US3908957A/en not_active Expired - Lifetime
- 1974-04-08 NL NLAANVRAGE7404783,A patent/NL177633C/en not_active IP Right Cessation
- 1974-04-09 IT IT7421073A patent/IT1006402B/en active
- 1974-04-10 SE SE7404871A patent/SE396491B/en not_active IP Right Cessation
- 1974-04-11 FI FI1124/74A patent/FI61768C/en active
- 1974-04-11 CA CA197,527A patent/CA998783A/en not_active Expired
- 1974-04-12 CS CS742663A patent/CS216229B2/en unknown
- 1974-04-15 DD DD177896A patent/DD111483A5/xx unknown
- 1974-04-16 PL PL1974170389A patent/PL90429B1/pl unknown
- 1974-04-16 BR BR3018/74A patent/BR7403018D0/en unknown
- 1974-04-16 NO NO741357A patent/NO139581C/en unknown
- 1974-04-16 DK DK208174A patent/DK150415C/en not_active IP Right Cessation
- 1974-04-17 HU HU74CE995A patent/HU175210B/en unknown
- 1974-04-17 GB GB1684874A patent/GB1430891A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE396491B (en) | 1977-09-19 |
BR7403018D0 (en) | 1974-11-19 |
BE813068A (en) | 1974-07-15 |
YU35685B (en) | 1981-04-30 |
NO139581C (en) | 1979-04-04 |
IL44507A (en) | 1977-07-31 |
GB1430891A (en) | 1976-04-07 |
US3908957A (en) | 1975-09-30 |
FI61768C (en) | 1982-09-10 |
NO741357L (en) | 1974-10-18 |
AU6753274A (en) | 1975-10-09 |
CA998783A (en) | 1976-10-19 |
CS216229B2 (en) | 1982-10-29 |
DD111483A5 (en) | 1975-02-12 |
PL90429B1 (en) | 1977-01-31 |
NL177633B (en) | 1985-05-17 |
DE2415479A1 (en) | 1974-11-14 |
FI61768B (en) | 1982-05-31 |
NL177633C (en) | 1985-10-16 |
JPS49131798A (en) | 1974-12-17 |
DK150415B (en) | 1987-02-23 |
IL44507A0 (en) | 1974-06-30 |
HU175210B (en) | 1980-06-28 |
ZA742077B (en) | 1975-04-30 |
DK150415C (en) | 1987-07-13 |
CH551057A (en) | 1974-06-28 |
ES424918A1 (en) | 1976-05-16 |
NO139581B (en) | 1978-12-27 |
NL7404783A (en) | 1974-10-21 |
YU89174A (en) | 1980-09-25 |
DE2415479B2 (en) | 1980-09-04 |
FR2226714B1 (en) | 1979-03-16 |
DE2415479C3 (en) | 1987-12-03 |
FR2226714A1 (en) | 1974-11-15 |
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