GB2255948B - Improvements in or relating to underground mining systems - Google Patents
Improvements in or relating to underground mining systemsInfo
- Publication number
- GB2255948B GB2255948B GB9111267A GB9111267A GB2255948B GB 2255948 B GB2255948 B GB 2255948B GB 9111267 A GB9111267 A GB 9111267A GB 9111267 A GB9111267 A GB 9111267A GB 2255948 B GB2255948 B GB 2255948B
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- underground mining
- mining systems
- systems
- underground
- 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
- 238000005065 mining Methods 0.000 title 1
Classifications
-
- 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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/14—Air partitions; Air locks
- E21F1/145—Air locks
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9111267A GB2255948B (en) | 1991-05-24 | 1991-05-24 | Improvements in or relating to underground mining systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9111267A GB2255948B (en) | 1991-05-24 | 1991-05-24 | Improvements in or relating to underground mining systems |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9111267D0 GB9111267D0 (en) | 1991-07-17 |
GB2255948A GB2255948A (en) | 1992-11-25 |
GB2255948B true GB2255948B (en) | 1994-04-06 |
Family
ID=10695562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9111267A Expired - Fee Related GB2255948B (en) | 1991-05-24 | 1991-05-24 | Improvements in or relating to underground mining systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2255948B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6425820B1 (en) * | 2000-03-30 | 2002-07-30 | Jack Kennedy Metal Products And Buildings, Inc. | Mine door power drive system |
US6594954B1 (en) | 2002-01-04 | 2003-07-22 | Jack Kennedy Metal Products & Buildings, Inc. | Mine door installation |
-
1991
- 1991-05-24 GB GB9111267A patent/GB2255948B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB9111267D0 (en) | 1991-07-17 |
GB2255948A (en) | 1992-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950524 |