GB2255948B - Improvements in or relating to underground mining systems - Google Patents

Improvements in or relating to underground mining systems

Info

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
Application number
GB9111267A
Other versions
GB9111267D0 (en
GB2255948A (en
Inventor
Neil Hawley Jackson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB9111267A priority Critical patent/GB2255948B/en
Publication of GB9111267D0 publication Critical patent/GB9111267D0/en
Publication of GB2255948A publication Critical patent/GB2255948A/en
Application granted granted Critical
Publication of GB2255948B publication Critical patent/GB2255948B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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)
GB9111267A 1991-05-24 1991-05-24 Improvements in or relating to underground mining systems Expired - Fee Related GB2255948B (en)

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)

* Cited by examiner, † Cited by third party
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

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