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GB2081340B - Deformable mine prop - Google Patents

Deformable mine prop

Info

Publication number
GB2081340B
GB2081340B GB8121565A GB8121565A GB2081340B GB 2081340 B GB2081340 B GB 2081340B GB 8121565 A GB8121565 A GB 8121565A GB 8121565 A GB8121565 A GB 8121565A GB 2081340 B GB2081340 B GB 2081340B
Authority
GB
United Kingdom
Prior art keywords
deformable
mine prop
prop
mine
deformable 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
Application number
GB8121565A
Other versions
GB2081340A (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB2081340A publication Critical patent/GB2081340A/en
Application granted granted Critical
Publication of GB2081340B publication Critical patent/GB2081340B/en
Expired 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
    • E21D15/02—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)
GB8121565A 1980-07-22 1981-07-13 Deformable mine prop Expired GB2081340B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA804400 1980-07-22
ZA804711 1980-08-01
ZA812744 1981-04-27

Publications (2)

Publication Number Publication Date
GB2081340A GB2081340A (en) 1982-02-17
GB2081340B true GB2081340B (en) 1984-07-25

Family

ID=27420906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8121565A Expired GB2081340B (en) 1980-07-22 1981-07-13 Deformable mine prop

Country Status (3)

Country Link
AU (1) AU547097B2 (en)
CA (1) CA1170066A (en)
GB (1) GB2081340B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA838848B (en) * 1982-08-26 1984-08-29
GB2149440A (en) * 1983-08-25 1985-06-12 Botha Raymond Berkley Mine prop
GB2132248A (en) * 1982-11-19 1984-07-04 H L & H Timber Products Timber mine prop
EP0128964A1 (en) * 1983-06-14 1984-12-27 Stope International Inc. Mine props
ZW9984A1 (en) * 1983-06-24 1984-09-19 Bestobell South Africa Ltd Collapsible elongate mine support
ZW16784A1 (en) * 1983-10-14 1985-02-27 Bestobell South Africa Ltd Elongate mine support
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
US9903203B2 (en) 2014-08-27 2018-02-27 Burrell Mining Products, Inc. Ventilated mine roof support
US9611738B2 (en) 2014-08-27 2017-04-04 Burrell Mining Products, Inc. Ventilated mine roof support
US11053683B2 (en) * 2018-01-24 2021-07-06 Strata Products Worldwide, Llc Apparatus for controlling yield performance of props for roofs, and methods

Also Published As

Publication number Publication date
AU7286481A (en) 1982-01-28
AU547097B2 (en) 1985-10-03
GB2081340A (en) 1982-02-17
CA1170066A (en) 1984-07-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee
PCPE Delete 'patent ceased' from journal

Free format text: 5063,PAGE 3903

PCNP Patent ceased through non-payment of renewal fee