ES350324A1 - Perfeccionamientos en instalaciones de deteccion de incen- dios. - Google Patents
Perfeccionamientos en instalaciones de deteccion de incen- dios.Info
- Publication number
- ES350324A1 ES350324A1 ES350324A ES350324A ES350324A1 ES 350324 A1 ES350324 A1 ES 350324A1 ES 350324 A ES350324 A ES 350324A ES 350324 A ES350324 A ES 350324A ES 350324 A1 ES350324 A1 ES 350324A1
- Authority
- ES
- Spain
- Prior art keywords
- fire
- ionization
- transistor
- detection system
- current
- 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
- 238000001514 detection method Methods 0.000 title abstract 3
- 230000005669 field effect Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/12—Provision for actuation of an alarm
- G01T7/125—Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
-
- 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
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- High Energy & Nuclear Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire-Detection Mechanisms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR94266A FR1540305A (fr) | 1967-02-09 | 1967-02-09 | Dispositif perfectionné de détection d'incendie |
Publications (1)
Publication Number | Publication Date |
---|---|
ES350324A1 true ES350324A1 (es) | 1969-04-16 |
Family
ID=8625028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES350324A Expired ES350324A1 (es) | 1967-02-09 | 1968-02-09 | Perfeccionamientos en instalaciones de deteccion de incen- dios. |
Country Status (8)
Country | Link |
---|---|
US (1) | US3582646A (es) |
AT (1) | AT292510B (es) |
BE (1) | BE710468A (es) |
DE (1) | DE1616020B2 (es) |
ES (1) | ES350324A1 (es) |
FR (1) | FR1540305A (es) |
GB (1) | GB1144624A (es) |
NL (1) | NL161280C (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3935492A (en) * | 1970-11-13 | 1976-01-27 | Nittan Company, Ltd. | Ionization smoke detector |
US3832552A (en) * | 1973-06-22 | 1974-08-27 | Honeywell Inc | Dual chamber ionization smoke detector |
FR2528980A1 (fr) * | 1982-06-17 | 1983-12-23 | Pgep | Detecteur de niveau d'ionisation d'un milieu gazeux controle par arc electrique |
CN107219548B (zh) * | 2017-07-31 | 2023-10-27 | 四川省核地质调查研究所 | 一种便携式反康普顿探测仪 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL99411C (es) * | 1957-01-25 | |||
CH355380A (de) * | 1957-10-30 | 1961-06-30 | Cerberus Gmbh | Einrichtung zur Feststellung von Änderungen in der Zusammensetzung eines Gases |
BE638121A (es) * | 1962-10-12 |
-
1967
- 1967-02-09 FR FR94266A patent/FR1540305A/fr not_active Expired
-
1968
- 1968-02-06 US US703348A patent/US3582646A/en not_active Expired - Lifetime
- 1968-02-06 GB GB5834/68A patent/GB1144624A/en not_active Expired
- 1968-02-07 BE BE710468D patent/BE710468A/xx not_active IP Right Cessation
- 1968-02-09 AT AT126668A patent/AT292510B/de not_active IP Right Cessation
- 1968-02-09 NL NL6801899.A patent/NL161280C/xx not_active IP Right Cessation
- 1968-02-09 ES ES350324A patent/ES350324A1/es not_active Expired
- 1968-02-09 DE DE19681616020 patent/DE1616020B2/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US3582646A (en) | 1971-06-01 |
DE1616020B2 (de) | 1976-02-12 |
DE1616020A1 (de) | 1971-03-04 |
NL161280C (nl) | 1980-01-15 |
NL6801899A (es) | 1968-08-12 |
BE710468A (es) | 1968-06-17 |
GB1144624A (en) | 1969-03-05 |
FR1540305A (fr) | 1968-09-27 |
NL161280B (nl) | 1979-08-15 |
AT292510B (de) | 1971-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19840214 |