Invention Grant
US08220094B2 Reinforced mine ventilation device 有权
加强矿井通风装置

Reinforced mine ventilation device
Abstract:
A mine ventilation and bridge structure incorporating a bridge feature enabling a mine vehicle to cross over the structure. The structure comprises a pair of generally parallel and spaced-apart side walls defining opposing side walls and a plurality of elongate deck panels extending between the side walls. At least one deck panel of the plurality of deck panels is a reinforced bridge deck panel constructed to support the weight of a vehicle crossing over the mine ventilation and bridge structure.
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