FR2025636A1 - - Google Patents
Info
- Publication number
- FR2025636A1 FR2025636A1 FR6938024A FR6938024A FR2025636A1 FR 2025636 A1 FR2025636 A1 FR 2025636A1 FR 6938024 A FR6938024 A FR 6938024A FR 6938024 A FR6938024 A FR 6938024A FR 2025636 A1 FR2025636 A1 FR 2025636A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Fire Alarms (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78238168A | 1968-12-09 | 1968-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2025636A1 true FR2025636A1 (fr) | 1970-09-11 |
Family
ID=25125879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6938024A Pending FR2025636A1 (fr) | 1968-12-09 | 1969-11-05 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3550120A (fr) |
| DE (1) | DE1961415A1 (fr) |
| FR (1) | FR2025636A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950746A (en) * | 1970-09-17 | 1976-04-13 | Davies John S | Electrically energized fire and/or intrusion detection system including spring-biased switching means |
| CH547531A (de) * | 1972-07-17 | 1974-03-29 | Cerberus Ag | Feuermeldeanlage. |
| US3924254A (en) * | 1972-10-06 | 1975-12-02 | Franklin R Klebold | Anti-intrusion alarm system |
| US3988725A (en) * | 1973-12-12 | 1976-10-26 | Pyrotector, Incorporated | Detector system |
| US3983548A (en) * | 1975-02-19 | 1976-09-28 | Tufts Howard L | Fire detection system |
| US3991413A (en) * | 1975-06-23 | 1976-11-09 | Berger Philip H | Constant current detector system |
| US5382909A (en) * | 1983-06-30 | 1995-01-17 | Raychem Corporation | Method for detecting and obtaining information about changes in variables |
| US5015958A (en) * | 1983-06-30 | 1991-05-14 | Raychem Corporation | Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors |
| WO1986007483A1 (fr) * | 1985-06-12 | 1986-12-18 | Raychem Corporation | Capteur d'hydrocarbure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2654082A (en) * | 1949-09-08 | 1953-09-29 | C O Two Fire Equipment Co | Smoke detector |
| US3351934A (en) * | 1965-05-19 | 1967-11-07 | Honeywell Inc | Supervised alarm system |
| US3430231A (en) * | 1965-06-01 | 1969-02-25 | Bliss Co | Annunciator system |
| US3500394A (en) * | 1966-12-23 | 1970-03-10 | Honeywell Inc | Control apparatus |
| US3478352A (en) * | 1967-03-10 | 1969-11-11 | Honeywell Inc | Alarm apparatus |
-
1968
- 1968-12-09 US US782381A patent/US3550120A/en not_active Expired - Lifetime
-
1969
- 1969-11-05 FR FR6938024A patent/FR2025636A1/fr active Pending
- 1969-12-08 DE DE19691961415 patent/DE1961415A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3550120A (en) | 1970-12-22 |
| DE1961415A1 (de) | 1970-07-02 |