Method for removing material from a rock wall
AssigneeJoy Global Underground Mining LLC
InventorsRussell P. Smith, Andrew D. Hunter, Peter A. Lugg, Ian B. Schirmer, Geoffrey W. Keech, Christopher Coates, Bradley M. Neilson
Life of this patent
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Abstract
A method for removing material from a rock wall. The method includes moving a cutting edge through the rock wall to create a first slot in the rock wall, moving the cutting edge through the rock wall to create a second slot in the rock wall, the second slot being separated from the first slot by an uncut portion, the uncut portion defining a base surface attached to the wall, cutting a notch into the base surface of the uncut portion, and applying a force on the uncut portion to break the uncut portion away from the wall.
Claims5
A method for removing material from a rock wall, the method comprising:
- moving a cutting edge through the rock wall to create a first slot in the rock wall;
- moving the cutting edge through the rock wall to create a second slot in the rock wall, the second slot being separated from the first slot by an uncut portion, the uncut portion defining a base surface attached to the wall;
- cutting a notch into the base surface of the uncut portion;
- and
- applying a force on the uncut portion to break the uncut portion away from the wall,
- wherein applying a force on the uncut portion includes contacting the uncut portion with a vibrating mass in order to induce the uncut portion to break away from the rock wall, and
- wherein the vibrating mass is a cutter head supporting the cutting edge.
Dependencies are inferred from the claim text.