Mine seal with multiple mortared walls
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United States of America Patent
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Jul 15, 2014
Grant Date -
Jan 20, 2011
app pub date -
Jan 14, 2009
filing date -
Jan 14, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An explosive-resistant mine seal (2) is provided, which includes a pair of block walls (14, 16). An adhesive (22) is provided between adjoining surfaces of the blocks (20) where the adhesive (22) has greater strength properties than the blocks (20) themselves. A core member (18, 18′) is provided between the two walls (14, 16) and is bound thereto. The adhesive (22) may be coated over the walls (14, 16) to increase the strength of the mine seal (2).
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