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2009
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Invention
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Anchor tendon with selectively deformable portions. A mine roof support system includes an elonga... |
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Invention
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Welded mesh rock support system for bursting and squeezing ground. A mesh panel is provide as par... |
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Invention
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Yieldable cone bolt and method of manufacturing same. A mine roof support assembly for anchoring ... |
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Invention
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Yieldable cone bolt and method of manufacturing same.
A mine roof support assembly fo... |
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2008
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Invention
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Apparatus for positioning anchor bolts and method of using same. An apparatus for positioning a r... |
