Rapid development mobile canopy for underground mining
OwnerRonald P. Elliott, Bryan Kelsoinventors
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OwnerRonald P. Elliott, Bryan Kelsoinventors
Estimating the term…
A mobile canopy (or rapid advance shield) for use in a tunnel, comprising: first and second opposing and spaced walls; a curved roof coupled between the first and second walls; first and second skis mounted to respective bottoms of the first and second walls, the skis adapted to slide the mobile canopy about a floor of the tunnel; wherein the curved roof slopes downward from a front end of the mobile canopy toward a back end of the mobile canopy, the front end of the mobile canopy for positioning adjacent to a face of the tunnel; wherein the curved roof is movable between a first position proximate a tunnel roof and a second position spaced from the tunnel roof; and, wherein the first and second walls are movable between respective first positions proximate respective tunnel walls and respective second positions spaced from the tunnel walls.
A mobile canopy for use in a tunnel, comprising:
A method for advancing a tunnel face in an underground mine, comprising:
Dependencies are inferred from the claim text.