AU4019878A - Roof bolt - Google Patents

Roof bolt

Info

Publication number
AU4019878A
AU4019878A AU40198/78A AU4019878A AU4019878A AU 4019878 A AU4019878 A AU 4019878A AU 40198/78 A AU40198/78 A AU 40198/78A AU 4019878 A AU4019878 A AU 4019878A AU 4019878 A AU4019878 A AU 4019878A
Authority
AU
Australia
Prior art keywords
roof bolt
roof
bolt
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.)
Pending
Application number
AU40198/78A
Inventor
Axel Gunnar Wijk
Nils Carl Hakan Resare
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Publication of AU4019878A publication Critical patent/AU4019878A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
AU40198/78A 1977-10-03 1978-09-26 Roof bolt Pending AU4019878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7711060A SE7711060L (en) 1977-10-03 1977-10-03 WAY TO INFORM A BOLT IN A DRILL HALL

Publications (1)

Publication Number Publication Date
AU4019878A true AU4019878A (en) 1980-04-03

Family

ID=20332447

Family Applications (1)

Application Number Title Priority Date Filing Date
AU40198/78A Pending AU4019878A (en) 1977-10-03 1978-09-26 Roof bolt

Country Status (6)

Country Link
AU (1) AU4019878A (en)
DE (1) DE2842722A1 (en)
FR (1) FR2412688A1 (en)
GB (1) GB2006905A (en)
SE (1) SE7711060L (en)
ZA (1) ZA785306B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU662559B2 (en) * 1991-08-30 1995-09-07 Ingersoll-Rand Company Friction rock anchor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350462A (en) * 1980-03-28 1982-09-21 Elders G W Roof support pin
US4313696A (en) * 1980-04-07 1982-02-02 Ingersoll-Rand Company Friction rock stabilizer and method for insertion thereof in an earth structure bore
US4400113A (en) * 1980-06-13 1983-08-23 Ingersol-Rand Company Friction rock stabilizer and a method of isolating the same from a bore surface
SE8106165L (en) * 1981-10-19 1983-04-20 Atlas Copco Ab PROCEDURE FOR MOUNTAIN AND MOUNTAIN
FI66055C (en) * 1982-06-04 1984-08-10 Tampella Oy Ab OVER APPARATUS FOER MONTERING AV LOEDBULTAR VID BERGBULTNING
WO2009150617A1 (en) * 2008-06-12 2009-12-17 Bent It Over Marketing Cc Anchoring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU662559B2 (en) * 1991-08-30 1995-09-07 Ingersoll-Rand Company Friction rock anchor

Also Published As

Publication number Publication date
FR2412688A1 (en) 1979-07-20
SE7711060L (en) 1979-04-05
GB2006905A (en) 1979-05-10
DE2842722A1 (en) 1979-04-12
ZA785306B (en) 1979-08-29

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