BE714927A - - Google Patents
Info
- Publication number
- BE714927A BE714927A BE714927DA BE714927A BE 714927 A BE714927 A BE 714927A BE 714927D A BE714927D A BE 714927DA BE 714927 A BE714927 A BE 714927A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63890067A | 1967-05-16 | 1967-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE714927A true BE714927A (de) | 1968-11-12 |
Family
ID=24561917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE714927D BE714927A (de) | 1967-05-16 | 1968-05-09 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3518654A (de) |
| BE (1) | BE714927A (de) |
| DE (1) | DE1766397B2 (de) |
| FR (1) | FR1574846A (de) |
| GB (1) | GB1219006A (de) |
| NL (1) | NL145695B (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1571488A (en) * | 1975-12-19 | 1980-07-16 | Svenska Rotor Maskiner Ab | Fire detection apparatus in a preheater |
| US4399095A (en) * | 1977-12-16 | 1983-08-16 | Westinghouse Electric Corp. | Protection and control system for a nuclear reactor |
| US4459259A (en) * | 1982-06-29 | 1984-07-10 | The United States Of America As Represented By The United States Department Of Energy | Digital computer operation of a nuclear reactor |
| US4706069A (en) * | 1986-04-08 | 1987-11-10 | Rca Corporation | Security system |
| DE3924250A1 (de) * | 1989-07-21 | 1991-02-07 | Preussag Ag Feuerschutz | Branddetektor |
| US5450066A (en) * | 1993-09-07 | 1995-09-12 | Simplex Time Recorder Company | Fire alarm heat detector |
| US5539381A (en) * | 1994-11-14 | 1996-07-23 | Sentrol, Inc. | Fixed threshold and rate of rise heat detector with dynamic thermal reference |
| EP1298617B1 (de) * | 2001-09-21 | 2006-08-30 | Hochiki Corporation | Feuerdetektor |
| WO2009111743A1 (en) | 2008-03-07 | 2009-09-11 | Milwaukee Electric Tool Corporation | Battery pack for use with a power tool and a non-motorized sensing tool |
| US20090257469A1 (en) * | 2008-04-09 | 2009-10-15 | Jones Mike N | Infrared thermometer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2432145A (en) * | 1941-12-16 | 1947-12-09 | American District Telegraph Co | Fire detector of the thermocouple type |
| US2976523A (en) * | 1956-10-01 | 1961-03-21 | Avco Mfg Corp | Electronic circuit for anticipating change of magnitude of a quantity under investigation |
| US2901740A (en) * | 1956-11-23 | 1959-08-25 | Specialties Dev Corp | Electrical network automatically responsive to a change in condition |
| US3235857A (en) * | 1960-09-14 | 1966-02-15 | Specialties Dev Corp | Condition responsive system having means responsive to a negative or positive rate of change of a detected signal |
-
1967
- 1967-05-16 US US638900A patent/US3518654A/en not_active Expired - Lifetime
-
1968
- 1968-04-30 GB GB20331/68A patent/GB1219006A/en not_active Expired
- 1968-05-09 BE BE714927D patent/BE714927A/xx unknown
- 1968-05-09 FR FR1574846D patent/FR1574846A/fr not_active Expired
- 1968-05-14 NL NL686806823A patent/NL145695B/xx unknown
- 1968-05-15 DE DE1766397A patent/DE1766397B2/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3518654A (en) | 1970-06-30 |
| NL6806823A (de) | 1968-11-18 |
| GB1219006A (en) | 1971-01-13 |
| FR1574846A (de) | 1969-07-18 |
| DE1766397A1 (de) | 1971-07-01 |
| DE1766397B2 (de) | 1974-02-14 |
| NL145695B (nl) | 1975-04-15 |