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BR8007087A - Escora - Google Patents

Escora

Info

Publication number
BR8007087A
BR8007087A BR8007087A BR8007087A BR8007087A BR 8007087 A BR8007087 A BR 8007087A BR 8007087 A BR8007087 A BR 8007087A BR 8007087 A BR8007087 A BR 8007087A BR 8007087 A BR8007087 A BR 8007087A
Authority
BR
Brazil
Prior art keywords
anchor
Prior art date
Application number
BR8007087A
Other languages
English (en)
Inventor
R Townsend
Original Assignee
Mine Support Syst Pty 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 Mine Support Syst Pty Ltd filed Critical Mine Support Syst Pty Ltd
Publication of BR8007087A publication Critical patent/BR8007087A/pt

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)
  • Joining Of Building Structures In Genera (AREA)
BR8007087A 1979-11-02 1980-10-31 Escora BR8007087A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA795882 1979-11-02

Publications (1)

Publication Number Publication Date
BR8007087A true BR8007087A (pt) 1981-05-05

Family

ID=25574350

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8007087A BR8007087A (pt) 1979-11-02 1980-10-31 Escora

Country Status (6)

Country Link
US (1) US4520980A (pt)
EP (1) EP0028496B1 (pt)
AU (1) AU538625B2 (pt)
BR (1) BR8007087A (pt)
CA (1) CA1138662A (pt)
DE (1) DE3066863D1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915339A (en) * 1982-08-06 1990-04-10 H L & H Timer Products (Proprietary) Limited 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
AU749241B2 (en) * 1997-10-23 2002-06-20 Strata Products (Usa), Llc Mine prop
US6499916B2 (en) 1999-04-14 2002-12-31 American Commercial Inc. Compressible support column
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
US11053683B2 (en) * 2018-01-24 2021-07-06 Strata Products Worldwide, Llc Apparatus for controlling yield performance of props for roofs, and methods

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE174234C (pt) *
DE289547C (pt) *
DE209120C (pt) *
DE575018C (de) * 1933-04-22 Hans Loyo Dr Metallgrubenstempel
DE642265C (de) * 1937-02-26 E H Carl Seelbach Dr Ing Stuetzkoerper mit Betonkern und Eisenrohrmantel
FR457567A (fr) * 1913-05-07 1913-09-20 Heinrich Heidkamp étai de mine
GB118969A (en) * 1918-01-05 1918-09-19 Mark Fryar Improvements in Pit Props.
US1471124A (en) * 1923-07-14 1923-10-16 Handl Egon Means for connecting ferro or reenforced concrete piles to wooden piles
US1642603A (en) * 1926-06-03 1927-09-13 Martin J Conway Reenforced mine prop
GB288011A (en) * 1927-03-07 1928-04-05 Thomas Knighton Improvements in and relating to pit props
US1759786A (en) * 1927-10-13 1930-05-20 Eugene A Hardin Pile
DE574822C (de) * 1931-04-19 1933-04-20 Dorstener Drahtwerke H W Brune Nachgiebiger Grubenstempel
US1996401A (en) * 1935-01-14 1935-04-02 Everette L Bowen Pile head preserver
DE810863C (de) * 1947-05-28 1951-08-13 Eduard Koster Schloss fuer eiserne Grubenstempel
DE854483C (de) * 1948-10-02 1952-11-04 Heinrich Tollkamp Grubenstempel
DE826588C (de) * 1948-10-02 1952-01-03 Alfons Barenberg Zweiteiliger rohrfoermiger Tragsaeulenaufsatz fuer Holzstempel
US2701449A (en) * 1952-03-28 1955-02-08 Young Foundation Corp Composite pile
DE1238420B (de) * 1964-11-04 1967-04-13 Paurat F Stempel aus Holz fuer den Ausbau von Untertageraeumen, insbesondere fuer den Streckenausbau
DE1940910U (de) * 1965-05-13 1966-06-23 Friedrich Wilhelm Paurat Grubenstempel aus holz.
US3372552A (en) * 1967-02-23 1968-03-12 Orval E. Liddell Wooden fender pile protecting apparatus
DE2657463C2 (de) * 1976-12-18 1978-06-15 Rudolf Dr.Med. 6781 Trulben Damminger Verbundwerkstoff mit einem Kern und einer damit festhaftend verbundenen Beschichtung

Also Published As

Publication number Publication date
EP0028496B1 (en) 1984-03-07
US4520980A (en) 1985-06-04
AU538625B2 (en) 1984-08-23
CA1138662A (en) 1983-01-04
AU6405980A (en) 1981-05-07
EP0028496A1 (en) 1981-05-13
DE3066863D1 (en) 1984-04-12

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19951031