FR2470852B1 - - Google Patents
Info
- Publication number
- FR2470852B1 FR2470852B1 FR8025193A FR8025193A FR2470852B1 FR 2470852 B1 FR2470852 B1 FR 2470852B1 FR 8025193 A FR8025193 A FR 8025193A FR 8025193 A FR8025193 A FR 8025193A FR 2470852 B1 FR2470852 B1 FR 2470852B1
- 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
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0086—Bearing plates
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Rock Bolts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9983679A | 1979-12-03 | 1979-12-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2470852A1 FR2470852A1 (fr) | 1981-06-12 |
| FR2470852B1 true FR2470852B1 (en:Method) | 1984-11-23 |
Family
ID=22276846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8025193A Granted FR2470852A1 (fr) | 1979-12-03 | 1980-11-27 | Plaque pour boulon de soutenement de toit de mine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5681798A (en:Method) |
| AU (1) | AU537481B2 (en:Method) |
| CA (1) | CA1161675A (en:Method) |
| FR (1) | FR2470852A1 (en:Method) |
| ZA (1) | ZA804722B (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0922611A (ja) * | 1994-12-21 | 1997-01-21 | Mitsuru Kusanagi | 山桜の樹皮を使用した照明器具の製造方法 |
| US20060285929A1 (en) * | 2005-06-16 | 2006-12-21 | Valgora George G | Bearing plate having tab |
| JP6887358B2 (ja) * | 2017-10-02 | 2021-06-16 | 日鉄建材株式会社 | 土砂構造物の受圧部材、土砂構造物の補強構造、及び土砂構造物の補強方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2748594A (en) * | 1952-11-04 | 1956-06-05 | Lukens Steel Co | Roof bolt |
| US4112693A (en) * | 1976-09-30 | 1978-09-12 | Kaiser Steel Corporation | Mine roof support plate |
-
1980
- 1980-08-04 AU AU61051/80A patent/AU537481B2/en not_active Expired
- 1980-08-04 ZA ZA00804722A patent/ZA804722B/xx unknown
- 1980-08-05 CA CA000357632A patent/CA1161675A/en not_active Expired
- 1980-09-10 JP JP12475380A patent/JPS5681798A/ja active Pending
- 1980-11-27 FR FR8025193A patent/FR2470852A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5681798A (en) | 1981-07-04 |
| ZA804722B (en) | 1981-07-29 |
| CA1161675A (en) | 1984-02-07 |
| AU537481B2 (en) | 1984-06-28 |
| FR2470852A1 (fr) | 1981-06-12 |
| AU6105180A (en) | 1981-06-11 |