CH358719A - Electric fire alarm system - Google Patents
Electric fire alarm systemInfo
- Publication number
- CH358719A CH358719A CH358719DA CH358719A CH 358719 A CH358719 A CH 358719A CH 358719D A CH358719D A CH 358719DA CH 358719 A CH358719 A CH 358719A
- Authority
- CH
- Switzerland
- Prior art keywords
- alarm system
- fire alarm
- electric fire
- electric
- 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
-
- 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
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Alarm Systems (AREA)
- Fire-Detection Mechanisms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH888296X | 1957-02-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH358719A true CH358719A (en) | 1961-11-30 |
Family
ID=4545451
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH351872D CH351872A (en) | 1957-02-19 | 1957-02-19 | Electrical signaling system |
CH358719D CH358719A (en) | 1957-02-19 | 1958-01-22 | Electric fire alarm system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH351872D CH351872A (en) | 1957-02-19 | 1957-02-19 | Electrical signaling system |
Country Status (6)
Country | Link |
---|---|
US (1) | US3160866A (en) |
BE (1) | BE564961A (en) |
CH (2) | CH351872A (en) |
DE (1) | DE1081804B (en) |
GB (1) | GB888296A (en) |
NL (2) | NL108575C (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3286246A (en) * | 1963-12-24 | 1966-11-15 | Coen Co | Annunciator for system malfunctions |
IL27293A (en) * | 1966-03-10 | 1971-03-24 | Pyrotector Inc | Particle detector |
US3573777A (en) * | 1968-12-09 | 1971-04-06 | Honeywell Inc | Combustion products detector control apparatus |
GB1298083A (en) * | 1968-12-26 | 1972-11-29 | Tokyo Hochiki Kk | Alarm circuit |
US3657737A (en) * | 1969-12-29 | 1972-04-18 | Jeffrey E Hamm | Method of and device for smoke detection and circuits therefor |
ZA71780B (en) * | 1970-03-31 | 1971-10-27 | Nittan Co Ltd | Fire alarming system |
US3702468A (en) * | 1970-08-10 | 1972-11-07 | Nittan Co Ltd | Fire alarming system |
US3728703A (en) * | 1970-10-12 | 1973-04-17 | Edward Co Inc | Fire detector stabilizer circuit |
US3987423A (en) * | 1975-12-22 | 1976-10-19 | The United States Of America As Represented By The United States Energy Research And Development Administration | Ionization-chamber smoke detector system |
US4117479A (en) * | 1976-04-16 | 1978-09-26 | American District Telegraph Company | Multi-mode intrusion alarm system |
US4481502A (en) * | 1982-03-26 | 1984-11-06 | Dawson N Rick | Central smoke alarm and annunciator |
GB2217888A (en) * | 1988-04-30 | 1989-11-01 | Andrew Murrell | Locally sited intruder alarm signal and fault indicator unit |
US8101130B2 (en) * | 2006-09-15 | 2012-01-24 | Applied Nanotech Holdings, Inc. | Gas ionization source |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US947000A (en) * | 1909-03-03 | 1910-01-18 | John P Kelly | Fire-alarm system. |
US1762906A (en) * | 1926-11-29 | 1930-06-10 | Reyrolle A & Co Ltd | Electric signaling or control system |
DE825224C (en) * | 1949-10-07 | 1951-12-17 | Anton John | Electrical alarm system for displaying excessively high temperatures in stacks of hay, straw, etc. like |
US2646556A (en) * | 1950-06-17 | 1953-07-21 | C O Two Fire Equipment Co | Supervised alarm system |
NL94775C (en) * | 1953-02-14 | |||
US2971183A (en) * | 1956-06-11 | 1961-02-07 | Hagan Chemicals & Controls Inc | Monitoring equipment |
-
0
- BE BE564961D patent/BE564961A/xx unknown
- NL NL224947D patent/NL224947A/xx unknown
- NL NL108575D patent/NL108575C/xx active
-
1957
- 1957-02-19 CH CH351872D patent/CH351872A/en unknown
-
1958
- 1958-01-22 CH CH358719D patent/CH358719A/en unknown
- 1958-02-11 DE DEC16276A patent/DE1081804B/en active Pending
- 1958-02-19 GB GB5389/58A patent/GB888296A/en not_active Expired
-
1963
- 1963-04-15 US US272928A patent/US3160866A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL224947A (en) | |
NL108575C (en) | |
DE1081804B (en) | 1960-05-12 |
BE564961A (en) | |
CH351872A (en) | 1961-01-31 |
US3160866A (en) | 1964-12-08 |
GB888296A (en) | 1962-01-31 |
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