Linepan and longwall mining machine
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United States of America Patent
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Sep 2, 2014
Grant Date -
Nov 28, 2013
app pub date -
May 25, 2012
filing date -
May 25, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A longwall mining machine and a linepan section, the linepan section may include a face-side rail, a gob-side rail opposite the face-side rail, and a conveyor pan between the face-side rail and the gob-side rail. The face-side rail may have a generally horizontal top surface at a top surface height and with a top surface width, an angled loading surface extending toward the mining face and the ground surface and arranged at an oblique angle relative to the top surface, the loading surface being at a loading height and with a loading surface width, the loading surface width being at least about 25 percent of the total width, and a material cavity defined in the face surface below the loading surface and recessed toward a gob-side.
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