Class E21F : SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
Subclass 5/14: Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (dams E21F 17/103; applying liquids or other fluent materials to surfaces in general B05; flue-gas indicators G01N) Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10612379 | Combined automatic anti-explosion method for gas drainage pipeline | Aug 03, 18 | Apr 07, 20 | CHINA UNIVERSITY OF MINING AND TECHNOLOGY; XUZHOU JINBO SAFETY AND TECHNOLOGY CO., LTD; |
| 10252092 | Explosion protection system | Apr 01, 16 | Apr 09, 19 | LEPL G. TSULUKIDZE MINING INSTITUTE |
| 9228435 | Method and apparatus for applying rock dust to a mine wall | Oct 24, 13 | Jan 05, 16 | Rusmar Incorporated |
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