WO2026115511 - AN ANCHOR FOR A ROCK BOLT AND A ROCK BOLT
National phase entry is expected:
Publication Number
WO/2026/115511
Publication Date
04.06.2026
International Application No.
PCT/IB2025/062260
International Filing Date
01.12.2025
Title **
[English]
AN ANCHOR FOR A ROCK BOLT AND A ROCK BOLT
[French]
ANCRAGE POUR BOULON D'ANCRAGE ET BOULON D'ANCRAGE
Applicants **
SANDVIK MINING AND CONSTRUCTION AUSTRALIA (PRODUCTION/SUPPLY) PTY LTD
Inventors
WEAVER, Steven
WANG, Jamie
Priority Data
24216422.6
29.11.2024
EP
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
IP Australia
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2099 | |
| EPO | Filing, Examination, Granting | 11624 | |
| Japan | Filing, Examination, Granting | 2171 | |
| South Korea | Filing, Examination, Granting | 2115 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,749
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Abstract[English]
An anchor (60) for a rock bolt, the anchor (60) being expandable between a hole insertion condition and a hole anchor condition. The anchor (60) comprising a leading end and a trailing end, and a connector (64) for connecting to a tendon (14). At least one gripper (70) is expandable outwardly from the insertion condition of the anchor (60) to the anchor condition for gripping the facing surface of a hole in which the anchor (60) is installed. The gripper (70) is biased by a coil spring (74) towards the leading end of the anchor (60) to expand the gripper (70) outwardly. A protection shroud (80) circumferentially surrounds an outside portion of the coil spring (74) to protect a portion of the coil spring (74) against ingress of grout within the hole.[French]
L'invention concerne un ancrage (60) pour un boulon d'ancrage, l'ancrage (60) étant extensible entre une condition d'insertion de trou et une condition d'ancrage de trou. L'ancrage (60) comprend une extrémité avant et une extrémité arrière, et un connecteur (64) destiné à être relié à un tendon (14). Au moins un dispositif de préhension (70) est extensible vers l'extérieur depuis l'état d'insertion de l'ancrage (60) vers la condition d'ancrage pour saisir la surface en regard d'un trou dans lequel l'ancrage (60) est installé. Le dispositif de préhension (70) est sollicité par un ressort hélicoïdal (74) vers l'extrémité avant de l'ancrage (60) pour dilater le dispositif de préhension (70) vers l'extérieur. Une enveloppe de protection (80) entoure de manière circonférentielle une partie extérieure du ressort hélicoïdal (74) pour protéger une partie du ressort hélicoïdal (74) contre l'entrée de coulis à l'intérieur du trou.