Method and apparatus for providing controlled atmosphere in mobile mine refuges
AssigneeChembio Shelter, Inc.
InventorEdward V. Roscioli
Life of this patent
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Abstract
A system, device and method for rapid delivery of clean air to occupants of a deployed mine refuge from a surface source after the refuge has been deployed and before the self-contained air has been consumed or before the temperature in the refuge has increased to hazardous levels in which a drilling rig is used to a borehole in close proximity to the mine refuge's underground location and a supply duct is lowered through the borehole to the underground mine near the refuge; upon hearing an alarm sounded by the system, a refuge occupant would exit the refuge, using existing personal breathing protection, to retrieve the duct and connect it to the mine refuge.
Claims11
A method and apparatus for providing a controlled atmosphere in mobile mine refuges comprising a supply of breathable air from outside the mine, a borehole, a tube duct, and an interconnection apparatus attached to the refuge to connect with the tube duct, wherein the supply of breathable air is in fluid communication with the refuge via a flow path from the supply of breathable air through the borehole, the tube duct, and interconnection then into the refuge.
Dependencies are inferred from the claim text.