FR2450340B1 - - Google Patents
Info
- Publication number
- FR2450340B1 FR2450340B1 FR8004101A FR8004101A FR2450340B1 FR 2450340 B1 FR2450340 B1 FR 2450340B1 FR 8004101 A FR8004101 A FR 8004101A FR 8004101 A FR8004101 A FR 8004101A FR 2450340 B1 FR2450340 B1 FR 2450340B1
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Clamps And Clips (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2908005 | 1979-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2450340A1 FR2450340A1 (fr) | 1980-09-26 |
| FR2450340B1 true FR2450340B1 (ru) | 1984-12-14 |
Family
ID=6064210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8004101A Granted FR2450340A1 (fr) | 1979-03-01 | 1980-02-25 | Cadre en plusieurs parties, constitutif d'un soutenement de galerie de mine |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE881922A (ru) |
| FR (1) | FR2450340A1 (ru) |
| GB (1) | GB2043132B (ru) |
| PL (1) | PL219910A1 (ru) |
| ZA (1) | ZA797061B (ru) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1383588A (fr) * | 1964-02-28 | 1964-12-24 | Bergbaustahl Gmbh & Co | Raccord de serrage avec système d'arrêt pour cadres de soutènement de mines à coulissement en profilés en forme de gouttières |
| GB1265667A (ru) * | 1968-08-30 | 1972-03-01 | ||
| GB1177468A (en) * | 1968-09-28 | 1970-01-14 | Hayden Nilos Ltd | Improvements in or relating to Yielding Mine Roof Supports and Yieldable Members Therefor. |
-
1979
- 1979-11-27 PL PL21991079A patent/PL219910A1/xx unknown
- 1979-12-28 ZA ZA00797061A patent/ZA797061B/xx unknown
- 1979-12-31 GB GB7944647A patent/GB2043132B/en not_active Expired
-
1980
- 1980-02-25 FR FR8004101A patent/FR2450340A1/fr active Granted
- 1980-02-26 BE BE0/199547A patent/BE881922A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA797061B (en) | 1981-04-29 |
| FR2450340A1 (fr) | 1980-09-26 |
| BE881922A (fr) | 1980-06-16 |
| GB2043132A (en) | 1980-10-01 |
| GB2043132B (en) | 1983-05-25 |
| PL219910A1 (ru) | 1980-09-08 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |