BE727699A - - Google Patents
Info
- Publication number
- BE727699A BE727699A BE727699DA BE727699A BE 727699 A BE727699 A BE 727699A BE 727699D A BE727699D A BE 727699DA BE 727699 A BE727699 A BE 727699A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR139945 | 1968-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE727699A true BE727699A (US07943777-20110517-C00090.png) | 1969-07-01 |
Family
ID=8646019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE727699D BE727699A (US07943777-20110517-C00090.png) | 1968-02-15 | 1969-01-30 |
Country Status (11)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1353615A (en) * | 1970-08-11 | 1974-05-22 | Prucill P M | Fire detection systems |
| JPS5136119B1 (US07943777-20110517-C00090.png) * | 1971-04-15 | 1976-10-06 | ||
| JPS5512635B2 (US07943777-20110517-C00090.png) * | 1972-07-26 | 1980-04-03 | ||
| US3775762A (en) * | 1972-09-15 | 1973-11-27 | Us Air Force | Gas multiplication ultraviolet detector system for fire detection |
| FR2257118B1 (US07943777-20110517-C00090.png) * | 1974-01-04 | 1976-11-26 | Commissariat Energie Atomique | |
| JPS5231699A (en) * | 1975-07-25 | 1977-03-10 | Hochiki Corp | Fire senser |
| DE2614487C2 (de) * | 1976-04-03 | 1983-06-23 | Total Feuerschutz GmbH, 6802 Ladenburg | Schaltungsanordnung zum Auswerten einer Zufallsimpulsfolge von einem strahlungsempfindlichen Gasentladungsdetektor |
| JPS52153759A (en) * | 1976-06-17 | 1977-12-21 | Hochiki Co | Storage type detector |
| US4162425A (en) * | 1977-06-30 | 1979-07-24 | Detector Electronics Corporation | Ultraviolet detection tube quenching circuitry |
| JPH0648293B2 (ja) * | 1983-03-18 | 1994-06-22 | 和芙 橋本 | 放射能等の自動測定警報装置 |
| US4521120A (en) * | 1983-09-15 | 1985-06-04 | The United States Of America As Represented By The Secretary Of Agriculture | Forest fire rate of spread with timers method |
| GB2199656B (en) * | 1987-01-07 | 1990-10-17 | Graviner Ltd | Detection of electromagnetic radiation |
| DE3706986A1 (de) * | 1987-03-04 | 1988-09-15 | Preussag Ag Feuerschutz | Verfahren zur auswertung des uv-anteils im flammenspektrum durch einen elektronischen flammenmelder |
| US6600425B1 (en) * | 2002-03-19 | 2003-07-29 | Elite Access Systems, Inc. | Method and apparatus for detecting and recording episodic overloads in a circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175165A (en) * | 1962-06-29 | 1965-03-23 | Edward S Dayhoff | Light controlled variable frequency pulse generator |
| US3393319A (en) * | 1965-09-30 | 1968-07-16 | Bausch & Lomb | Photoelectric circuit for counting light pulses above a minimium value |
-
1968
- 1968-02-15 FR FR139945A patent/FR1565498A/fr not_active Expired
-
1969
- 1969-01-30 BE BE727699D patent/BE727699A/xx not_active IP Right Cessation
- 1969-01-31 CH CH152969A patent/CH486746A/fr not_active IP Right Cessation
- 1969-02-05 GB GB6224/69A patent/GB1255221A/en not_active Expired
- 1969-02-07 DE DE1906075A patent/DE1906075C3/de not_active Expired
- 1969-02-07 NL NL6901997.A patent/NL164981C/xx not_active IP Right Cessation
- 1969-02-07 US US797402A patent/US3621262A/en not_active Expired - Lifetime
- 1969-02-10 AT AT134469A patent/AT293920B/de not_active IP Right Cessation
- 1969-02-11 SE SE1851/69A patent/SE344254B/xx unknown
- 1969-02-14 CA CA042914A patent/CA929251A/en not_active Expired
- 1969-02-14 ES ES363669A patent/ES363669A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1906075C3 (de) | 1974-02-21 |
| GB1255221A (en) | 1971-12-01 |
| AT293920B (de) | 1971-10-25 |
| CA929251A (en) | 1973-06-26 |
| NL164981C (nl) | 1981-02-16 |
| NL6901997A (US07943777-20110517-C00090.png) | 1969-08-19 |
| NL164981B (nl) | 1980-09-15 |
| ES363669A1 (es) | 1971-01-01 |
| CH486746A (fr) | 1970-02-28 |
| SE344254B (US07943777-20110517-C00090.png) | 1972-04-04 |
| DE1906075B2 (de) | 1973-07-26 |
| US3621262A (en) | 1971-11-16 |
| DE1906075A1 (de) | 1969-09-04 |
| FR1565498A (US07943777-20110517-C00090.png) | 1969-05-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: LA DEDECTION ELECTRONIQUE FRANCAISE Effective date: 19890130 |