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US 2020/0011177 A1Published application
Rock bolt installation tool
AssigneeEpiroc Holdings South Africa (Pty) Ltd
InventorsPaolo Ettore PASTORINO, Adriaan BERGHORST
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AssigneeEpiroc Holdings South Africa (Pty) Ltd
InventorsPaolo Ettore PASTORINO, Adriaan BERGHORST
Estimating the term…
A tool aiding the installation of a rock bolt assembly in a rock hole includes: a drive shaft having a proximal end to engage with a drilling rig, and a distal end with a recess to receive a trailing end portion of the rock bolt and which has a first seat against which an axially pre-set component of the rock bolt assembly abuts; and a tubular sleeve telescopically engaged with the shaft with a first end for receiving an axially moveable component of the rock bolt assembly and which has a second seat against which the axially moveable component abuts, and a second end. The sleeve is reciprocally moveable relatively to the shaft between a biased forward position in which the axially pre-set component and the axially moveable component are spaced, and a retracted position in which the axially pre-set component engages or connects to the axially moveable component.
A rock tool anchor assembly installation which includes a drive shaft having a proximal end, which is adapted to engage with a drilling rig, and a distal end which includes a recess which is adapted to receive a trailing end portion of the rock bolt and which has a first seat against which an axially pre-set component of a rock anchor assembly abuts;
Dependencies are inferred from the claim text.