Invention Grant
- Patent Title: Liquefied breathing gas systems for underground mines
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Application No.: US13553403Application Date: 2012-07-19
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Publication No.: US09605806B2Publication Date: 2017-03-28
- Inventor: Michael H. Baym , W. Daniel Hillis , Roderick A. Hyde , Muriel Y. Ishikawa , Jordin T. Kare , Conor L. Myhrvold , Nathan P. Myhrvold , Tony Pan , Clarence T. Tegreene , Charles Whitmer , Lowell L. Wood, Jr. , Victoria Y. H. Wood
- Applicant: Michael H. Baym , W. Daniel Hillis , Roderick A. Hyde , Muriel Y. Ishikawa , Jordin T. Kare , Conor L. Myhrvold , Nathan P. Myhrvold , Tony Pan , Clarence T. Tegreene , Charles Whitmer , Lowell L. Wood, Jr. , Victoria Y. H. Wood
- Applicant Address: US WA Bellevue
- Assignee: Elwha LLC
- Current Assignee: Elwha LLC
- Current Assignee Address: US WA Bellevue
- Agency: Foley & Lardner LLP
- Main IPC: E21F1/00
- IPC: E21F1/00 ; F17D1/00 ; B65B1/00

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.
Public/Granted literature
- US20140020787A1 LIQUEFIED BREATHING GAS SYSTEMS FOR UNDERGROUND MINES Public/Granted day:2014-01-23
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