Patent ID: 7073981
Filing Date: 2006-07-11
Classification: E21D

Abstract:
1. A rock stabilizer comprising: an elongated substantially cylindrically shaped metal tube having and interior and an exterior surface and including a distal end and a proximal end, said distal end being tapered so that the extreme distal end is initially smaller in diameter than the remaining portions of said tube, a flange located adjacent said proximal end, said tube further including only a single slit running substantially the entire length thereof, said tube being capable of being positioned within a bore formed in the wall of a mine; a plurality of indentations or recesses formed in the exterior surface of said tube along the length thereof adjacent said slit whereby grout or resinous material pumped into said interior of said tube can flow out of said slit and into said plurality of indentations or recesses, said plurality of indentations or recesses being spaced apart from each other and being located at a plurality of different axial positions along the length of said tube, and wedge means located within said interior of said tube adjacent said distal end, said wedge means being actuatable from said proximal end after said stabilizer is installed in a bore to expand said distal end so as to firmly anchor said stabilizer in said bore.