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US 4,900,092 AGranted
Barrel for rock breaking tool and method of use
AssigneeBoutade Worldwide Investments NV
InventorsHermanus Q. Van Der Westhuizen, Thomas M. Muller
Life of this patent
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Abstract
A rock breaking method includes drilling a hole in rock, filling the hole with water, inserting a short barrel of a rock breaking tool into the hole entrance, covering the tool with a recoil restraining mat, and discharging a cartridge down the barrel.
Claims3
A method of breaking up rock, comprising the steps of;
- substantially filing a hole in a rock with a liquid;
- inserting a barrel of a rock breaking tool into the hole, the barrel having an open distal end and the tool being operable to discharge a cartridge from a firing chamber down the barrel;
- positioning a blast absorbing mat over the tool to retain it substantially in position in the hole during discharge of the cartridge;
- and
- discharging the cartridge down the barrel to cause an impulsive energy shock in the liquid to break up the rock.
2 more elements
Dependencies are inferred from the claim text.