Adjustable mine ventilation system and method
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United States of America Patent
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Oct 15, 2019
Grant Date -
Dec 1, 2016
app pub date -
Dec 28, 2015
filing date -
May 28, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A vertically and laterally adjustable frame for a mine ventilation structure having two or more pairs of adjustable height support columns, and a plurality of adjustable length support beams, each support beam mounted to and spanning between a pair of the support columns. A mine overcast and a method of assembling an overcast in an intersection within a mine are also provided, with the overcast including a vertically and laterally adjustable frame, and a plurality of side and ceiling panels mounted to the frame.
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