IPC Main Group
E21F 5/00 Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
Related Keywords
compositions for laying DUST in minessafety devices in MINE(S)
6 direct subcodes
Child Classifications
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- E21F 5/02 by wetting or spraying
- E21F 5/08 Rock dusting; Depositing other protective substances
- E21F 5/14 Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
- E21F 5/16 Layers of hygroscopic or other salts deposited on floors, walls, or the like, for binding dust; Deposition of such layers
- E21F 5/18 Impregnating walls, or the like, with liquids for binding dust
- E21F 5/2 Drawing-off or depositing dust