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AU722243B2 - Cable bolt - Google Patents
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AU722243B2 - Cable bolt - Google Patents

Cable bolt Download PDF

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Publication number
AU722243B2
AU722243B2 AU11270/99A AU1127099A AU722243B2 AU 722243 B2 AU722243 B2 AU 722243B2 AU 11270/99 A AU11270/99 A AU 11270/99A AU 1127099 A AU1127099 A AU 1127099A AU 722243 B2 AU722243 B2 AU 722243B2
Authority
AU
Australia
Prior art keywords
cable
cable bolt
attachment
bolt
engagement
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.)
Expired
Application number
AU11270/99A
Other versions
AU1127099A (en
AU722243C (en
Inventor
Mietek Rataj
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.)
DSI Underground Australia Pty Ltd
Original Assignee
Ani Corp 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25614414&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU722243(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from AUPP1319A external-priority patent/AUPP131998A0/en
Application filed by Ani Corp Ltd filed Critical Ani Corp Ltd
Priority to AU11270/99A priority Critical patent/AU722243C/en
Publication of AU1127099A publication Critical patent/AU1127099A/en
Application granted granted Critical
Publication of AU722243B2 publication Critical patent/AU722243B2/en
Assigned to DYWIDAG-SYSTEMS INTERNATIONAL PTY. LIMITED reassignment DYWIDAG-SYSTEMS INTERNATIONAL PTY. LIMITED Alteration of Name(s) of Applicant(s) under S113 Assignors: ANI CORPORATION LIMITED, THE
Publication of AU722243C publication Critical patent/AU722243C/en
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

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  • Piles And Underground Anchors (AREA)

Description

S F Ref: 444380
AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT a. a a
ORIGINAL
Name and Address of Applicant: Actual Inventor(s): Address for Service: Invention Title: The ANI Corporation Limited Level 5, Merlin Centre 235 Pyrmont Street Pyrmont New South Wales 2009
AUSTRALIA
Mietek Rataj Spruson Ferguson, Patent Attorneys Level 33 St Martins Tower, 31 Market Street Sydney, New South Wales, 2000, Australia Cable Bolt ASSOCIATED PROVISIONAL APPLICATION DETAILS [31] Application No(s) [33] Country PP1319 AU [32] Application Date 13 January 1998 The following statement is a full description of this invention, including the best method of performing it known to me/us:- 5815 CABLE BOLT Field of the Invention The following invention relates to cable bolts and their method of installation.
More particularly, though not exclusively, the invention relates to a cable bolt having an attachment extending from one end thereof, which attachment is adapted to be engaged by a tool used for turning the cable bolt for mixing of resin in a borehole of a rock formation. The invention also relates to a cable bolt having an angled end shaped to interact with a mating turning implement.
Cable bolts traditionally have been installed in a rock formation by cement 10o grouting. In this method, the cable is pushed into a pre-drilled hole and the cement •grout is pumped into the hole to anchor the cable.
•oFaster methods of cable bolt installation are currently being developed. These methods are similar to methods used for installation of solid bolts where the bolt is anchored by a resin grout.
In this method, a resin cartridge containing two components of which one is a hardener, is inserted into the pre-drilled hole in the rock formation prior to insertion of the cable bolt. Forcing the cable into the borehole while simultaneously rotating the cable ruptures the resin cartridge or cartridges and mixes the resin components within the annulus between the bolt and the borehole wall.
In order to rotate a cable for resin mixing, some attachment is required to engage the cable with a rotating tool such as a spanner.
Known prior art methods employed a special fitting having a hexagonal barrel *and a plug. The barrel has an internally tapered funnel-shaped bore therethrough and a tapered plug having a frusto-conical outer surface that engages the funnel-shaped inner surface of the drive barrel. The tapered plug has an internal bore concentric with the outer frusto-conical surface and fits over the cable. The hexagonal head drive barrel provides a rigid head for the cable bolt allowing engagement by a spanner. An example of such an arrangement is shown in Australian Patent No. AU-A-50708/96.
Another method of coupling the cable with the rotating tool is described in US Patent No. 5,511,909. The fitting of this reference includes a barrel and plug as described above, although the end portions of the plug members extend out of the barrel. These protrusions being of square or hexagonal shape engage with the rotating spanner.
Another method of rotating a cable bolt in order to mix the resin is disclosed in Australian Patent No. 668515. In this reference, the cable is threaded and a standard nut is screwed onto the cable in much the same way as a nut is threadably engaged with a solid bolt.
IN:\LIBLL02032:KEH All of the above described methods are relatively expensive due to the requirement of machining of the hexagonal shaped barrel or plug segments with special protrusions or threading of the cable.
Object of the Invention It is the object of the present invention to overcome or substantially ameliorate at least one of the above disadvantages.
Disclosure of the Invention There is disclosed herein a cable bolt having a cable with a longitudinal axis, said cable bolt being provided with an engagement means at one end of said cable, said io engagement means defining an engagement face for engagement with a tool to effect rotation of said cable bolt about said axis, wherein said engagement means does not protrude laterally beyond said cable at said one end.
Preferably, said engagement means is in the form of an attachment having a noncircular cross-section, said attachment being welded to said one end of said cable and defining a plurality of said engagement faces.
Preferably, said attachment has a square cross section defining four said engagement faces.
:"•Alternatively, said attachment has a hexagonal cross section defining six said engagement faces.
20 In an alternatively embodiment, the engagement means is a slanted end of the cable defining said engagement face, for mating with a matching surface in a recess of the go tool.
Preferably, said slanted end is reinforced by welding.
Preferably, said slanted end extends at an angle in the range of 300 to 600 from said longitudinal axis of said cable.
0.4 Brief Description of the Drawings Preferred forms of the present invention will now be described by way of example with reference to the accompanying drawings, wherein: Fig. 1 is a schematic perspective view of a cable bolt having an attachment welded to one end thereof, and Fig. 2 is a schematic perspective view of a cable bolt having a slanted surface formed in one end thereof.
[R:\LIBLL]09550.doc:TCW Description of the Preferred Embodiments In Fig. 1 of the accompanying drawings there is schematically depicted an end portion of a cable bolt. This is the end portion which protrudes from a pre-drilled hole in a rock structure when used. That is, it is the end of the cable remote from the end which pierces the resin grout capsule. A square shaped section 1 is attached to the cable as shown, typically by means of welding 3. The transverse maximum dimension of the attachment 1 is smaller than the outside diameter of the cable 2 so as to allow for easy installation of a barrel and wedges.
The fact that the attachment 1 does not protrude beyond the perimeter of the 1o cable 2 enables pre-tensioning equipment which can only be used on a cable with no protrusions to be used.
The installation spanner (not shown) will have a socket with a square aperture to engage with the square attachment in order to rotate the cable. Of course, the attachment 1 could be any non-circular shape such as hexagonal.
A further embodiment of the invention is depicted in Fig. 2. In this embodiment, the cable bolt 2 has a slanted end 4 which extends at an angle which is typically in the range of 300 to 600 from the direction of extent of the cable bolt 2. The flat surface of the slanted end 4 is adapted to match with a similarly angled surface in a spanner having a corresponding recess to enable engagement between the cable and the spanner sufficient to enable rotation of the cable by rotation of the spanner so as to mix the resin components at the other end of the cable bolt. The slanted end 4 may be reinforced by welding of the flat face 4.
l It should be appreciated that modifications and alterations obvious to those skilled in the art are not to be considered as beyond the scope of the present invention.
For example, a pair of oppositely disposed tapered surfaces 4 might be provided in the end of the cable bolt 2 rather than a single face 4.
[R:\LIBLL]09550doc:TCW

Claims (6)

  1. 2. The cable bolt of claim 1, wherein said engagement means is in the form of an attachment having a non-circular cross-section, said attachment being welded to said one end of said cable and defining a plurality of said engagement faces.
  2. 3. The cable bolt of claim 2, wherein said attachment has a square cross section defining four said engagement faces.
  3. 4. The cable bolt of claim 2, wherein said attachment has a hexagonal cross section defining six said engagement faces. The cable bolt of claim 1, wherein the engagement means is a slanted end of the cable defining said engagement face, for mating with a matching surface in a recess of the tool.
  4. 6. The cable bolt of claim 5, wherein said slanted end is reinforced by welding.
  5. 7. The cable bolt of claim 5, wherein said slanted end extends at an angle 20 in the range of 300 to 600 from said longitudinal axis of said cable. o:.o.i
  6. 8. A cable bolt, substantially as hereinbefore described with reference to either of the accompanying drawings. Dated 24 May, 2000 The ANI Corporation Limited Patent Attorneys for the Applicant/Nominated Person ooo ~SPRUSON FERGUSON [R:\LIBLL]09550.doc:TCW
AU11270/99A 1998-01-13 1999-01-11 Cable bolt Expired AU722243C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11270/99A AU722243C (en) 1998-01-13 1999-01-11 Cable bolt

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPP1319 1998-01-13
AUPP1319A AUPP131998A0 (en) 1998-01-13 1998-01-13 Cable bolt
AU11270/99A AU722243C (en) 1998-01-13 1999-01-11 Cable bolt

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU71702/00A Division AU738529B3 (en) 1998-01-13 2000-11-20 Cable Bolt

Publications (3)

Publication Number Publication Date
AU1127099A AU1127099A (en) 1999-08-05
AU722243B2 true AU722243B2 (en) 2000-07-27
AU722243C AU722243C (en) 2005-04-21

Family

ID=25614414

Family Applications (1)

Application Number Title Priority Date Filing Date
AU11270/99A Expired AU722243C (en) 1998-01-13 1999-01-11 Cable bolt

Country Status (1)

Country Link
AU (1) AU722243C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115898490B (en) * 2023-02-14 2023-08-22 西南交通大学 A device and method for automatically feeding and stirring prestressed anchor cables

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7405096A (en) * 1996-02-15 1997-08-21 Jennmar Corporation Cable bolt driver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7405096A (en) * 1996-02-15 1997-08-21 Jennmar Corporation Cable bolt driver

Also Published As

Publication number Publication date
AU1127099A (en) 1999-08-05
AU722243C (en) 2005-04-21

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Legal Events

Date Code Title Description
CB Opposition filed

Opponent name: JENNMAR AUSTRALIA PTY LTD

PC1 Assignment before grant (sect. 113)

Owner name: DYWIDAG-SYSTEMS INTERNATIONAL PTY. LIMITED

Free format text: THE FORMER OWNER WAS: THE ANI CORPORATION LIMITED

ON Decision of a delegate or deputy of the commissioner of patents (result of patent office hearing)

Free format text: UNDER THE CIRCUMSTANCES, A SHORT FEROCEM TYPE EXTENSION WAS GRANTED, ALLOWING JENMAR SEVEN DAYS FROM THE DATE OF THE HEARING TO SERVE ANY EVIDENCE-IN-REPLY IT HAD AT HAND. IT WAS PROPOSED TO ISSUE A DIRECTION TO HAVE THE OPPOSITION TO AN EXTENSION OF TERM TO THE PETTY HEARD SIMULTANEOUSLY WITH THE SUBSTANTIVE HEARING FOR THE PRESENT APPLICATION, PENDING REPRESENTATIONS FROM EITHER PARTY CONCERNING SUSCH A PROPOSED DIRECTION.

Opponent name: JENMAR AUSTRALIA PTY LTD

Effective date: 20030905

ON Decision of a delegate or deputy of the commissioner of patents (result of patent office hearing)

Free format text: THE INDEPENDENT CLAIM WAS CONSIDERED TO LACK NOVELTY IN THE LIGHT OF THE PRIOR ART RAISED BY THE OPPONENT. THE CLAIMED INVENTION ALSO LACKS INVENTIVE STEP. THE INDEPENDENT CLAIM LACKS FAIR BASIS. THEREFORE THE APPL WAS GIVEN 60 DAYS FROM THE DATE OF THIS DECISION TO AMEND THE SPECIFICATION.

Opponent name: JENMAR AUSTRALIA PTY LTD

Effective date: 20040713

DA2 Applications for amendment section 104

Free format text: THE NATURE OF THE PROPOSED AMENDMENT IS AS SHOWN IN THE STATEMENT(S) FILED 20040729 AND 20040827

MK14 Patent ceased section 143(a) (annual fees not paid) or expired