EP2748432A4 - Self-drilling friction bolt - Google Patents

Self-drilling friction bolt

Info

Publication number
EP2748432A4
EP2748432A4 EP12825784.7A EP12825784A EP2748432A4 EP 2748432 A4 EP2748432 A4 EP 2748432A4 EP 12825784 A EP12825784 A EP 12825784A EP 2748432 A4 EP2748432 A4 EP 2748432A4
Authority
EP
European Patent Office
Prior art keywords
self
friction bolt
drilling friction
drilling
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.)
Withdrawn
Application number
EP12825784.7A
Other languages
German (de)
French (fr)
Other versions
EP2748432A1 (en
Inventor
Salgado Mauricio Antonio Hidalgo
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.)
FCI Holdings Delaware Inc
Original Assignee
FCI Holdings Delaware Inc
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 FCI Holdings Delaware Inc filed Critical FCI Holdings Delaware Inc
Publication of EP2748432A1 publication Critical patent/EP2748432A1/en
Publication of EP2748432A4 publication Critical patent/EP2748432A4/en
Withdrawn legal-status Critical Current

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
    • 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
    • E21D21/0053—Anchoring-bolts in the form of lost drilling rods

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)
  • Earth Drilling (AREA)
EP12825784.7A 2011-08-23 2012-08-22 Self-drilling friction bolt Withdrawn EP2748432A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL2011002065A CL2011002065A1 (en) 2011-08-23 2011-08-23 Fortification system that simultaneously performs the drilling and installation of friction fortification bolts for the maintenance of land, in the process of drilling and installing the friction bolt, the cylinder head or adapter and the drilling bar are recovered, losing only the drill bit in charge of breaking the rocky mace.
PCT/US2012/051852 WO2013028754A1 (en) 2011-08-23 2012-08-22 Self-drilling friction bolt

Publications (2)

Publication Number Publication Date
EP2748432A1 EP2748432A1 (en) 2014-07-02
EP2748432A4 true EP2748432A4 (en) 2016-08-10

Family

ID=50382848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12825784.7A Withdrawn EP2748432A4 (en) 2011-08-23 2012-08-22 Self-drilling friction bolt

Country Status (7)

Country Link
US (1) US20140154017A1 (en)
EP (1) EP2748432A4 (en)
AU (1) AU2012298905B2 (en)
CA (1) CA2846097A1 (en)
CL (1) CL2011002065A1 (en)
WO (1) WO2013028754A1 (en)
ZA (1) ZA201309390B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2862693C (en) 2012-02-22 2016-10-11 Fci Holdings Delaware, Inc. Fiberglass roof and rib plate
WO2015072839A1 (en) * 2013-11-15 2015-05-21 Aguilar Vera Oscar Octavio Mining stilt for tube anchor
KR101471486B1 (en) * 2014-02-04 2014-12-10 삼진스틸산업(주) Removable ground anchor body using Rotation
AU2016245331B2 (en) * 2015-04-10 2021-05-20 DSI Underground Australia Pty Limited Improved drilling assembly comprising a friction bolt
BR112018076738B1 (en) 2016-06-21 2022-11-29 Alert Technologies Inc SENSING DEVICE, ANCHOR SCREW, AND SYSTEM

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6648557B1 (en) * 1999-04-30 2003-11-18 Raers Corporation Pty Ltd. Drilling apparatus and method for single pass bolting
US20040084217A1 (en) * 2001-04-26 2004-05-06 Josef Mocivnik Method and device for drilling a hole and for securing an anchorage in a bore hole

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025875A (en) * 1990-05-07 1991-06-25 Ingersoll-Rand Company Rock bit for a down-the-hole drill
BRPI0618483A2 (en) * 2005-11-09 2011-08-30 Sandvik Intellectual Property rock self-drilling screw
CA2665474A1 (en) * 2006-11-15 2008-05-22 Sandvik Intellectual Property Ab A rock bolt and an anchoring device
US20110070035A1 (en) * 2007-12-21 2011-03-24 Alminco Pty Ltd. Self drilling rock bolting

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6648557B1 (en) * 1999-04-30 2003-11-18 Raers Corporation Pty Ltd. Drilling apparatus and method for single pass bolting
US20040084217A1 (en) * 2001-04-26 2004-05-06 Josef Mocivnik Method and device for drilling a hole and for securing an anchorage in a bore hole

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013028754A1 *

Also Published As

Publication number Publication date
WO2013028754A1 (en) 2013-02-28
AU2012298905A1 (en) 2013-05-02
EP2748432A1 (en) 2014-07-02
ZA201309390B (en) 2015-09-30
CL2011002065A1 (en) 2011-10-28
CA2846097A1 (en) 2013-02-28
US20140154017A1 (en) 2014-06-05
AU2012298905B2 (en) 2015-02-05

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Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140206

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20160713

RIC1 Information provided on ipc code assigned before grant

Ipc: E21D 21/00 20060101AFI20160707BHEP

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: 20170209