EP0130770A3 - Ausziehbarer Grubenstempel - Google Patents

Ausziehbarer Grubenstempel Download PDF

Info

Publication number
EP0130770A3
EP0130770A3 EP84304291A EP84304291A EP0130770A3 EP 0130770 A3 EP0130770 A3 EP 0130770A3 EP 84304291 A EP84304291 A EP 84304291A EP 84304291 A EP84304291 A EP 84304291A EP 0130770 A3 EP0130770 A3 EP 0130770A3
Authority
EP
European Patent Office
Prior art keywords
pole
mine support
collapsible elongate
collapsible
elongate 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.)
Withdrawn
Application number
EP84304291A
Other languages
English (en)
French (fr)
Other versions
EP0130770A2 (de
Inventor
Dirk Cornelius Stephanus Venter
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.)
BESTOBELL SOUTH AFRICA Ltd
Original Assignee
BESTOBELL SOUTH AFRICA 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 BESTOBELL SOUTH AFRICA Ltd filed Critical BESTOBELL SOUTH AFRICA Ltd
Publication of EP0130770A2 publication Critical patent/EP0130770A2/de
Publication of EP0130770A3 publication Critical patent/EP0130770A3/de
Withdrawn legal-status Critical Current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
    • E21D15/14—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)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP84304291A 1983-06-24 1984-06-25 Ausziehbarer Grubenstempel Withdrawn EP0130770A3 (de)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
ZA834618 1983-06-24
ZA834618 1983-06-24
ZA834619 1983-06-24
ZA834619 1983-06-24
ZA837625 1983-10-13
ZA837625 1983-10-13
ZA837657 1983-10-14
ZA837657 1983-10-14
ZA838465 1983-11-14
ZA838465 1983-11-14
ZA84824 1984-02-03
ZA840824 1984-02-03

Publications (2)

Publication Number Publication Date
EP0130770A2 EP0130770A2 (de) 1985-01-09
EP0130770A3 true EP0130770A3 (de) 1986-05-14

Family

ID=27560364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84304291A Withdrawn EP0130770A3 (de) 1983-06-24 1984-06-25 Ausziehbarer Grubenstempel

Country Status (3)

Country Link
EP (1) EP0130770A3 (de)
CA (1) CA1218534A (de)
ZW (1) ZW9984A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8801338B2 (en) * 2011-11-28 2014-08-12 Micon Nested mine roof supports

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642603A (en) * 1926-06-03 1927-09-13 Martin J Conway Reenforced mine prop
DE1088905B (de) * 1958-12-02 1960-09-15 Rheinstahl Gmbh Wanheim Verfahren zur Herstellung konischer zylindrischer Innenstempel
EP0028496A1 (de) * 1979-11-02 1981-05-13 Mine Support Systems (Proprietary) Limited Holzstempel
GB2077808A (en) * 1980-05-09 1981-12-23 Longwall Mining Equipment Prop Improvements in props
GB2080364A (en) * 1980-07-22 1982-02-03 Hunt Leuchars & Hepburn Ltd Mine support prop
GB2081340A (en) * 1980-07-22 1982-02-17 Brown Allan Henry George Deformable mine prop
GB2096203A (en) * 1981-04-08 1982-10-13 Longwall Mining Equipment Prop Mine support

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642603A (en) * 1926-06-03 1927-09-13 Martin J Conway Reenforced mine prop
DE1088905B (de) * 1958-12-02 1960-09-15 Rheinstahl Gmbh Wanheim Verfahren zur Herstellung konischer zylindrischer Innenstempel
EP0028496A1 (de) * 1979-11-02 1981-05-13 Mine Support Systems (Proprietary) Limited Holzstempel
GB2077808A (en) * 1980-05-09 1981-12-23 Longwall Mining Equipment Prop Improvements in props
GB2080364A (en) * 1980-07-22 1982-02-03 Hunt Leuchars & Hepburn Ltd Mine support prop
GB2081340A (en) * 1980-07-22 1982-02-17 Brown Allan Henry George Deformable mine prop
GB2096203A (en) * 1981-04-08 1982-10-13 Longwall Mining Equipment Prop Mine support

Also Published As

Publication number Publication date
CA1218534A (en) 1987-03-03
ZW9984A1 (en) 1984-09-19
EP0130770A2 (de) 1985-01-09

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

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STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870102

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VENTER, DIRK CORNELIUS STEPHANUS