ATA181288A - Rohranker - Google Patents

Rohranker

Info

Publication number
ATA181288A
ATA181288A AT181288A AT181288A ATA181288A AT A181288 A ATA181288 A AT A181288A AT 181288 A AT181288 A AT 181288A AT 181288 A AT181288 A AT 181288A AT A181288 A ATA181288 A AT A181288A
Authority
AT
Austria
Prior art keywords
pipe rank
rank
pipe
Prior art date
Application number
AT181288A
Other languages
English (en)
Other versions
AT397287B (de
Original Assignee
Mayreder Kraus & Co Ing
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 Mayreder Kraus & Co Ing filed Critical Mayreder Kraus & Co Ing
Priority to AT181288A priority Critical patent/AT397287B/de
Publication of ATA181288A publication Critical patent/ATA181288A/de
Application granted granted Critical
Publication of AT397287B publication Critical patent/AT397287B/de

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E21D21/004—Bolts held in the borehole by friction all along their length, without additional fixing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Piles And Underground Anchors (AREA)
AT181288A 1988-07-14 1988-07-14 Rohranker AT397287B (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT181288A AT397287B (de) 1988-07-14 1988-07-14 Rohranker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT181288A AT397287B (de) 1988-07-14 1988-07-14 Rohranker

Publications (2)

Publication Number Publication Date
ATA181288A true ATA181288A (de) 1993-07-15
AT397287B AT397287B (de) 1994-03-25

Family

ID=3521519

Family Applications (1)

Application Number Title Priority Date Filing Date
AT181288A AT397287B (de) 1988-07-14 1988-07-14 Rohranker

Country Status (1)

Country Link
AT (1) AT397287B (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314778A (en) * 1979-11-19 1982-02-09 Ingersoll-Rand Co. Friction rock stabilizer and method for inserting thereof in an earth structure bore

Also Published As

Publication number Publication date
AT397287B (de) 1994-03-25

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Legal Events

Date Code Title Description
EFA Change in the company name
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee