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US 9,732,614 B2Granted
Device, method and system for loading fixatives for rock bolts
AssigneeGazmick Pty Ltd
InventorGary Davison
Life of this patent
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Abstract
The present invention relates to a device, method and system for the installation of a fixative in a drill-hole, such as to secure rock bolts. The device comprises (a) a chamber adapted to hold the fixative, and (b) a thrust member, wherein the fixative is displaced from the chamber into the drill-hole following application of force to the thrust member.
Claims12
A device for loading a fixative into a drill hole in a region to be stabilized, the device comprising:
- a. a chamber adapted to hold a fixative, and
- b. a thrust member,
- wherein the fixative is configured to be displaced at least partially from the chamber positioned external of a drill hole, into the drill hole, following application by a rod member of a first predetermined force to the thrust member to move the thrust member through the chamber, wherein the thrust member comprises at least one frangible section and the rod member in use applies a second predetermined force to the thrust member to rupture the at least one frangible section, and wherein the chamber has a fixed internal transverse dimension greater than that of the drill hole whereby, in use, the chamber is maintained entirely external of the drill hole.
A method of installing a rock bolt and a fixative therefor in a region to be stabilized, said method comprising the steps of:
- a. drilling a drill hole in a region,
- b. providing a device for loading a fixative in said drill hole, said device comprising a chamber holding said fixative, an exit port leading from said chamber in communication with said fixative, and a thrust member with an externally facing guide tube engageable with an end zone of a rock bolt,
- c. engaging said guide tube with said end zone of said rock bolt to position said exit port overlying said drill hole and maintain said chamber entirely external of said drill hole,
- d. applying force to said rock bolt to move said thrust member such that at least some of said fixative is displaced from said chamber through said exit port into said drill hole, and
- e. applying a second force to said rock bolt whereby said rock bolt passes through said thrust member into said drill hole,
- wherein during steps d and e, said exit port is positioned overlying said drill hole and said chamber is maintained entirely external of said drill hole.
3 more elements
Dependencies are inferred from the claim text.