[go: up one dir, main page]

GB2330596B - Mine prop - Google Patents

Mine prop

Info

Publication number
GB2330596B
GB2330596B GB9822522A GB9822522A GB2330596B GB 2330596 B GB2330596 B GB 2330596B GB 9822522 A GB9822522 A GB 9822522A GB 9822522 A GB9822522 A GB 9822522A GB 2330596 B GB2330596 B GB 2330596B
Authority
GB
United Kingdom
Prior art keywords
mine prop
prop
mine
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
GB9822522A
Other versions
GB2330596A (en
GB9822522D0 (en
Inventor
Clifford A Mccartney
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.)
STRATA PRODUCTS
Original Assignee
STRATA PRODUCTS
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 STRATA PRODUCTS filed Critical STRATA PRODUCTS
Publication of GB9822522D0 publication Critical patent/GB9822522D0/en
Publication of GB2330596A publication Critical patent/GB2330596A/en
Application granted granted Critical
Publication of GB2330596B publication Critical patent/GB2330596B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/54—Details of the ends of props
    • E21D15/55—Details of the ends of props of prop heads or feet
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/02—Non-telescopic props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)
GB9822522A 1997-10-23 1998-10-15 Mine prop Expired - Fee Related GB2330596B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6323997P 1997-10-23 1997-10-23

Publications (3)

Publication Number Publication Date
GB9822522D0 GB9822522D0 (en) 1998-12-09
GB2330596A GB2330596A (en) 1999-04-28
GB2330596B true GB2330596B (en) 2001-08-22

Family

ID=22047908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9822522A Expired - Fee Related GB2330596B (en) 1997-10-23 1998-10-15 Mine prop

Country Status (3)

Country Link
AU (1) AU749241B2 (en)
CA (1) CA2251446A1 (en)
GB (1) GB2330596B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6910834B2 (en) 2003-05-27 2005-06-28 Burrell Mining Products, Inc. Mine prop
US8851805B2 (en) 2012-08-30 2014-10-07 Burrell Mining Products, Inc. Telescopic mine roof support
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288011A (en) * 1927-03-07 1928-04-05 Thomas Knighton Improvements in and relating to pit props
GB447422A (en) * 1934-11-17 1936-05-18 Thomas Francis Swainston Brass Improvements in pit props
US4520980A (en) * 1979-11-02 1985-06-04 Mine Support Systems (Proprietary) Ltd. Elongate compression bearing member
US5318387A (en) * 1991-03-13 1994-06-07 H L & H Timber Products (Proprietary) Limited Yieldable load support

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2149440A (en) * 1983-08-25 1985-06-12 Botha Raymond Berkley Mine prop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB288011A (en) * 1927-03-07 1928-04-05 Thomas Knighton Improvements in and relating to pit props
GB447422A (en) * 1934-11-17 1936-05-18 Thomas Francis Swainston Brass Improvements in pit props
US4520980A (en) * 1979-11-02 1985-06-04 Mine Support Systems (Proprietary) Ltd. Elongate compression bearing member
US5318387A (en) * 1991-03-13 1994-06-07 H L & H Timber Products (Proprietary) Limited Yieldable load support

Also Published As

Publication number Publication date
GB2330596A (en) 1999-04-28
CA2251446A1 (en) 1999-04-23
AU8927198A (en) 1999-05-13
GB9822522D0 (en) 1998-12-09
AU749241B2 (en) 2002-06-20

Similar Documents

Publication Publication Date Title
GB2330597B (en) Yieldable mine roof support
GB2321882B (en) Mine detector
ZA974419B (en) Mine props
PL306924A1 (en) Mine roof supports
AU2789895A (en) Mine prop
GB2330596B (en) Mine prop
GB2324324B (en) Underground chambers
ZA984887B (en) Mine support prop
ZA977556B (en) Mine prop.
ZA985591B (en) Mine prop
ZA984889B (en) Mine prop
ZA9810868B (en) Yielding mine support prop
ZA983357B (en) Prop
PL319517A1 (en) Frictional mining prop
ZA984890B (en) Mine supports
ZA986062B (en) Mine supports
ZA956790B (en) Mine prop
ZA989141B (en) Mine support prop.
ZA9710500B (en) Mine prop.
ZA973881B (en) Mine prop.
ZA976799B (en) Mine prop.
ZA9811078B (en) Props
PL321972A1 (en) Self-advancing roof supports
PL320896A1 (en) Self-advancing roof supports
GB9711637D0 (en) Mine clearance

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20121015