DK123736B - Alarm system with several parallel connected message units. - Google Patents
Alarm system with several parallel connected message units.Info
- Publication number
- DK123736B DK123736B DK617068AA DK617068A DK123736B DK 123736 B DK123736 B DK 123736B DK 617068A A DK617068A A DK 617068AA DK 617068 A DK617068 A DK 617068A DK 123736 B DK123736 B DK 123736B
- Authority
- DK
- Denmark
- Prior art keywords
- alarm system
- parallel connected
- several parallel
- message units
- connected message
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
- G08B29/123—Checking intermittently signalling or alarm systems of line circuits
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
- G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
- G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
- G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1834067A CH463329A (en) | 1967-12-29 | 1967-12-29 | Signal system with several signaling units connected in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK123736B true DK123736B (en) | 1972-07-24 |
Family
ID=4432272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK617068AA DK123736B (en) | 1967-12-29 | 1968-12-17 | Alarm system with several parallel connected message units. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3588892A (en) |
| AT (1) | AT285388B (en) |
| BE (1) | BE726158A (en) |
| CH (1) | CH463329A (en) |
| DE (1) | DE1815206C3 (en) |
| DK (1) | DK123736B (en) |
| FR (1) | FR1599970A (en) |
| GB (1) | GB1202760A (en) |
| NL (1) | NL163885C (en) |
| SE (1) | SE385516B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3753258A (en) * | 1970-03-31 | 1973-08-14 | Nittan Co Ltd | Fire alarming system |
| US3983548A (en) * | 1975-02-19 | 1976-09-28 | Tufts Howard L | Fire detection system |
| JPS5346092A (en) * | 1976-10-08 | 1978-04-25 | Toshiba Corp | Gas leakage alarm device |
| DE2817121C2 (en) * | 1978-04-19 | 1985-10-10 | Siemens AG, 1000 Berlin und 8000 München | Alarm system |
| US4263587A (en) * | 1979-04-09 | 1981-04-21 | International Telephone And Telegraph Corporation | Liquid level control system |
| JPS595955B2 (en) * | 1979-07-27 | 1984-02-08 | ホーチキ株式会社 | fire alarm |
| US4456907A (en) * | 1981-01-12 | 1984-06-26 | Pyrotector, Inc. | Ionization type smoke detector with test circuit |
| US4481502A (en) * | 1982-03-26 | 1984-11-06 | Dawson N Rick | Central smoke alarm and annunciator |
| IT1169167B (en) * | 1983-02-15 | 1987-05-27 | Gd Spa | FUNCTIONAL CONTROL SYSTEM FOR OUTPUT TRANSDUCERS OF A CENTRAL CONTROL AND CONTROL UNIT FOR MACHINES AND / OR DEVICES USABLE IN PRODUCTION AND / OR PACKAGING LINES OF PRODUCTS |
| IT1169166B (en) * | 1983-02-15 | 1987-05-27 | Gd Spa | FUNCTIONAL CONTROL SYSTEM OF INPUT CIRCUITS TO A CENTRAL CONTROL AND CONTROL UNIT FOR MACHINES AND / OR DEVICES USABLE IN PRODUCTION AND / OR PACKAGING LINES OF PRODUCTS |
| DE9408898U1 (en) * | 1994-05-31 | 1995-09-28 | Zettler GmbH, 80469 München | Hazard detector |
| IE970008A1 (en) * | 1996-01-10 | 1997-07-16 | William Alexander Heffron | A detecting unit and a detecting circuit comprising a¹plurality of the detecting units |
| DE102016200913A1 (en) | 2016-01-22 | 2017-07-27 | Hekatron Vertriebs Gmbh | Device for line monitoring of hazard detectors and locking devices |
| DE102016200914A1 (en) | 2016-01-22 | 2017-07-27 | Hekatron Vertriebs Gmbh | Device for line monitoring at a locking device of fire doors with smoke switches |
| CN107450521A (en) * | 2017-08-23 | 2017-12-08 | 郑州朗鑫智能电子科技有限公司 | A kind of electric detection means of smart home |
-
1967
- 1967-12-29 CH CH1834067A patent/CH463329A/en unknown
-
1968
- 1968-12-03 AT AT1174568A patent/AT285388B/en not_active IP Right Cessation
- 1968-12-17 DE DE1815206A patent/DE1815206C3/en not_active Expired
- 1968-12-17 DK DK617068AA patent/DK123736B/en not_active IP Right Cessation
- 1968-12-18 US US784655A patent/US3588892A/en not_active Expired - Lifetime
- 1968-12-20 NL NL6818361.A patent/NL163885C/en not_active IP Right Cessation
- 1968-12-20 SE SE6817563A patent/SE385516B/en unknown
- 1968-12-24 GB GB61420/68A patent/GB1202760A/en not_active Expired
- 1968-12-24 FR FR1599970D patent/FR1599970A/fr not_active Expired
- 1968-12-27 BE BE726158D patent/BE726158A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH463329A (en) | 1968-09-30 |
| FR1599970A (en) | 1970-07-20 |
| BE726158A (en) | 1969-05-29 |
| NL163885C (en) | 1980-10-15 |
| AT285388B (en) | 1970-10-27 |
| DE1815206C3 (en) | 1975-08-07 |
| DE1815206B2 (en) | 1974-12-05 |
| US3588892A (en) | 1971-06-28 |
| SE385516B (en) | 1976-07-05 |
| GB1202760A (en) | 1970-08-19 |
| NL6818361A (en) | 1969-07-01 |
| NL163885B (en) | 1980-05-16 |
| DE1815206A1 (en) | 1969-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |