GB1513219A - Ionization-type fire and/or smoke sensors - Google Patents
Ionization-type fire and/or smoke sensorsInfo
- Publication number
- GB1513219A GB1513219A GB30899/76A GB3089976A GB1513219A GB 1513219 A GB1513219 A GB 1513219A GB 30899/76 A GB30899/76 A GB 30899/76A GB 3089976 A GB3089976 A GB 3089976A GB 1513219 A GB1513219 A GB 1513219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- ionization
- temperature
- ionization chamber
- resistors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
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)
- Electronic Switches (AREA)
- Geophysics And Detection Of Objects (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Medicines Containing Plant Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH971075A CH586941A5 (US07935154-20110503-C00018.png) | 1975-07-25 | 1975-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1513219A true GB1513219A (en) | 1978-06-07 |
Family
ID=4354810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30899/76A Expired GB1513219A (en) | 1975-07-25 | 1976-07-23 | Ionization-type fire and/or smoke sensors |
Country Status (19)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2707409C2 (de) * | 1977-02-21 | 1985-02-21 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Ionisationsbrandmelder |
| DE3004753C2 (de) * | 1980-02-08 | 1983-12-22 | Hartwig Dipl.-Ing. 2409 Scharbeutz Beyersdorf | Brandmeldeeinrichtung |
| US6292105B1 (en) * | 1998-12-23 | 2001-09-18 | The Johns Hopkins University | Thermal ionization detector |
| AT414179B (de) * | 2001-11-19 | 2006-09-15 | Vaillant Gmbh | Flammenüberwachungsschaltung |
| CN113829340A (zh) * | 2021-09-02 | 2021-12-24 | 苏州触达信息技术有限公司 | 基于巡检机器人的变电站消防方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH489070A (de) * | 1969-03-27 | 1970-04-15 | Cerberus Ag Werk Fuer Elektron | Ionisationsfeuermelder |
| US3718919A (en) * | 1969-06-16 | 1973-02-27 | Nittan Co Ltd | Ionization smoke detector |
| NL7010779A (US07935154-20110503-C00018.png) * | 1969-07-24 | 1971-01-26 | ||
| FR2065109A5 (US07935154-20110503-C00018.png) * | 1969-10-09 | 1971-07-23 | Nittan Co Ltd | |
| US3946374A (en) * | 1970-08-13 | 1976-03-23 | Sci Systems, Inc. | Rate-of-change combustion and contamination detection device |
| JPS5136028B1 (US07935154-20110503-C00018.png) * | 1970-09-18 | 1976-10-06 | ||
| US3728706A (en) * | 1970-09-28 | 1973-04-17 | Gen Signal Corp | System for indicating aerosols in the atmosphere |
| US3701004A (en) * | 1971-05-13 | 1972-10-24 | Us Army | Circuit for generating a repeatable voltage as a function of temperature |
| US3760199A (en) * | 1972-09-11 | 1973-09-18 | Burr Brown Res Corp | Fet zero temperature-coefficient bias |
| US3909815A (en) * | 1973-06-01 | 1975-09-30 | Gamma Electronic | Detector for fumes and combustion gases |
| CH572252A5 (US07935154-20110503-C00018.png) * | 1973-11-09 | 1976-01-30 | Nohmi Bosai Kogyo Co Ltd | |
| US3899693A (en) * | 1974-02-14 | 1975-08-12 | Minnesota Mining & Mfg | Temperature compensated voltage reference device |
-
1975
- 1975-07-25 CH CH971075A patent/CH586941A5/xx not_active IP Right Cessation
-
1976
- 1976-06-15 DE DE2626779A patent/DE2626779C2/de not_active Expired
- 1976-06-18 AT AT447276A patent/AT355957B/de not_active IP Right Cessation
- 1976-06-21 FR FR7618846A patent/FR2319168A1/fr active Granted
- 1976-06-22 NL NL7606754A patent/NL7606754A/xx not_active Application Discontinuation
- 1976-06-24 US US05/699,333 patent/US4037106A/en not_active Expired - Lifetime
- 1976-06-28 BE BE168391A patent/BE843506A/xx not_active IP Right Cessation
- 1976-06-30 CA CA256,121A patent/CA1041678A/en not_active Expired
- 1976-07-05 JP JP51079077A patent/JPS5216294A/ja active Granted
- 1976-07-08 ZA ZA764066A patent/ZA764066B/xx unknown
- 1976-07-09 IT IT25166/76A patent/IT1067375B/it active
- 1976-07-12 ES ES450049A patent/ES450049A1/es not_active Expired
- 1976-07-12 SE SE7607932A patent/SE408349B/xx not_active IP Right Cessation
- 1976-07-12 NZ NZ181443A patent/NZ181443A/xx unknown
- 1976-07-13 AU AU15830/76A patent/AU501708B2/en not_active Expired
- 1976-07-19 CS CS764745A patent/CS192562B2/cs unknown
- 1976-07-23 GB GB30899/76A patent/GB1513219A/en not_active Expired
- 1976-07-23 DK DK332876A patent/DK143922C/da not_active IP Right Cessation
- 1976-07-23 NO NO762588A patent/NO141578C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK143922C (da) | 1982-04-13 |
| DK143922B (da) | 1981-10-26 |
| AU1583076A (en) | 1978-01-19 |
| SE7607932L (sv) | 1977-01-26 |
| JPS5216294A (en) | 1977-02-07 |
| FR2319168B1 (US07935154-20110503-C00018.png) | 1980-01-04 |
| JPS5728156B2 (US07935154-20110503-C00018.png) | 1982-06-15 |
| NZ181443A (en) | 1980-10-24 |
| CH586941A5 (US07935154-20110503-C00018.png) | 1977-04-15 |
| ATA447276A (de) | 1979-08-15 |
| IT1067375B (it) | 1985-03-16 |
| BE843506A (fr) | 1976-10-18 |
| DK332876A (da) | 1977-01-26 |
| NO141578C (no) | 1980-04-09 |
| CS192562B2 (en) | 1979-08-31 |
| NO762588L (US07935154-20110503-C00018.png) | 1977-01-26 |
| CA1041678A (en) | 1978-10-31 |
| NL7606754A (nl) | 1977-01-27 |
| SE408349B (sv) | 1979-06-05 |
| NO141578B (no) | 1979-12-27 |
| ES450049A1 (es) | 1977-07-16 |
| FR2319168A1 (fr) | 1977-02-18 |
| AT355957B (de) | 1980-04-10 |
| DE2626779A1 (de) | 1977-02-10 |
| AU501708B2 (en) | 1979-06-28 |
| ZA764066B (en) | 1977-06-29 |
| DE2626779C2 (de) | 1984-04-26 |
| US4037106A (en) | 1977-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |