Liquefied breathing gas systems for underground mines
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United States of America Patent
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Mar 28, 2017
Grant Date -
Jan 23, 2014
app pub date -
Jul 19, 2012
filing date -
Jul 19, 2012
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Abstract
A method of transporting liquefied breathing gases in underground mines includes providing a conduit system that extends within a mine shaft to a work space below ground where the conduit system includes an outlet positioned in the work space, delivering liquefied breathing gases through the conduit system, and vaporizing the liquefied breathing gases at the outlet of the conduit system.
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