CH614797A5 - - Google Patents
Info
- Publication number
- CH614797A5 CH614797A5 CH209577A CH209577A CH614797A5 CH 614797 A5 CH614797 A5 CH 614797A5 CH 209577 A CH209577 A CH 209577A CH 209577 A CH209577 A CH 209577A CH 614797 A5 CH614797 A5 CH 614797A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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 SYSTEMS, e.g. PERSONAL 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
- G08B29/16—Security signalling or alarm systems, e.g. redundant systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire Alarms (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976018255U JPS52111590U (enExample) | 1976-02-20 | 1976-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH614797A5 true CH614797A5 (enExample) | 1979-12-14 |
Family
ID=11966562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH209577A CH614797A5 (enExample) | 1976-02-20 | 1977-02-18 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4142219A (enExample) |
| JP (1) | JPS52111590U (enExample) |
| CH (1) | CH614797A5 (enExample) |
| DE (1) | DE2707061A1 (enExample) |
| FR (1) | FR2341903A1 (enExample) |
| GB (1) | GB1532173A (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2203581A (en) * | 1987-04-15 | 1988-10-19 | Jack Y C Chen | Fire and/or burglar alarm system |
| US5302889A (en) * | 1992-06-19 | 1994-04-12 | Honeywell Inc. | Voltage regulator |
| DE4412653C2 (de) * | 1994-04-13 | 1997-01-09 | Schmersal K A Gmbh & Co | Überwachungseinrichtung |
| CN103280055A (zh) * | 2013-05-30 | 2013-09-04 | 成都荣耀科技有限公司 | 可增强报警功能的低压电力线路防盗系统 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS446089Y1 (enExample) * | 1966-03-30 | 1969-03-05 | ||
| DE2029485B2 (de) * | 1969-06-21 | 1971-11-25 | Nittan Co. Ltd., Tokio | Ionisations rauchfuehler |
| US3717862A (en) * | 1969-10-16 | 1973-02-20 | Nittan Co Ltd | Fire detecting system and testing means therefor |
| US3728706A (en) * | 1970-09-28 | 1973-04-17 | Gen Signal Corp | System for indicating aerosols in the atmosphere |
| US3824434A (en) * | 1972-12-26 | 1974-07-16 | Square D Co | Relay with time delay coil |
| US4021671A (en) * | 1975-07-07 | 1977-05-03 | Gulf & Western Manufacturing Company (Systems) | Ionization detector |
-
1976
- 1976-02-20 JP JP1976018255U patent/JPS52111590U/ja active Pending
-
1977
- 1977-02-16 US US05/769,197 patent/US4142219A/en not_active Expired - Lifetime
- 1977-02-17 GB GB6757/77A patent/GB1532173A/en not_active Expired
- 1977-02-18 CH CH209577A patent/CH614797A5/xx not_active IP Right Cessation
- 1977-02-18 DE DE19772707061 patent/DE2707061A1/de not_active Withdrawn
- 1977-02-18 FR FR7704790A patent/FR2341903A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2341903A1 (fr) | 1977-09-16 |
| JPS52111590U (enExample) | 1977-08-24 |
| DE2707061A1 (de) | 1977-09-01 |
| GB1532173A (en) | 1978-11-15 |
| US4142219A (en) | 1979-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |