FR2640784B1 - Telealarme de puits - Google Patents
Telealarme de puitsInfo
- Publication number
- FR2640784B1 FR2640784B1 FR8816842A FR8816842A FR2640784B1 FR 2640784 B1 FR2640784 B1 FR 2640784B1 FR 8816842 A FR8816842 A FR 8816842A FR 8816842 A FR8816842 A FR 8816842A FR 2640784 B1 FR2640784 B1 FR 2640784B1
- Authority
- FR
- France
- Prior art keywords
- telealarm
- well
- well telealarm
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Alarm Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8816842A FR2640784B1 (fr) | 1988-12-20 | 1988-12-20 | Telealarme de puits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8816842A FR2640784B1 (fr) | 1988-12-20 | 1988-12-20 | Telealarme de puits |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2640784A1 FR2640784A1 (fr) | 1990-06-22 |
FR2640784B1 true FR2640784B1 (fr) | 1991-04-05 |
Family
ID=9373190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8816842A Expired - Fee Related FR2640784B1 (fr) | 1988-12-20 | 1988-12-20 | Telealarme de puits |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2640784B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103334791A (zh) * | 2013-05-11 | 2013-10-02 | 樊铁山 | 一种基于分站式的煤矿回风井高气压实时监测系统 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103437814A (zh) * | 2013-07-23 | 2013-12-11 | 新疆大学 | 沿空留巷矿山压力监测系统 |
CN106066378A (zh) * | 2016-06-20 | 2016-11-02 | 枣庄海纳科技有限公司 | 采空区在线检测装置 |
-
1988
- 1988-12-20 FR FR8816842A patent/FR2640784B1/fr not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103334791A (zh) * | 2013-05-11 | 2013-10-02 | 樊铁山 | 一种基于分站式的煤矿回风井高气压实时监测系统 |
CN103334791B (zh) * | 2013-05-11 | 2015-11-25 | 樊铁山 | 一种基于分站式的煤矿回风井高气压实时监测系统 |
Also Published As
Publication number | Publication date |
---|---|
FR2640784A1 (fr) | 1990-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |