E | FIXED CONSTRUCTIONS | |||
EARTH OR ROCK DRILLING; MINING | ||||
E21 | EARTH OR ROCK DRILLING; MINING | |||
Note(s)
| ||||
E21F | SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS [2] | |||
Ventilation of mines or tunnels | ||||
E21F 1/00 | ||||
E21F 1/02 | • | |||
E21F 1/04 | • Air ducts (suspension devices E21F 17/02) [2006.01] | |||
E21F 1/06 | • • | |||
E21F 1/08 | • Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators (ventilators per se
F04D) [2006.01] | |||
E21F 1/10 | • | |||
E21F 1/12 | • • Devices for automatically opening air doors [2006.01] | |||
E21F 1/14 | • Air partitions; Air locks (dams E21F 17/103; air locks for foundations E02D) [2006.01] | |||
E21F 1/16 | • Shaft covers [2006.01] | |||
E21F 1/18 | • | |||
E21F 3/00 | ||||
Safety devices; Rescue devices | ||||
E21F 5/00 | 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) [2006.01] | |||
E21F 5/02 | • by wetting or spraying [2006.01] | |||
E21F 5/04 | • • Spraying barriers (spray nipples, spraying in general B05B, B05D; picks with arrangement of fluid-spraying nozzles E21C 35/187) [2006.01] | |||
E21F 5/06 | • • Fluids used for spraying [2006.01] | |||
E21F 5/08 | • Rock dusting; Depositing other protective substances [2006.01] | |||
E21F 5/10 | • • Devices for rock dusting [2006.01] | |||
E21F 5/12 | • • Composition of rock dust [2006.01] | |||
E21F 5/14 | • Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions [2006.01] | |||
E21F 5/16 | • | |||
E21F 5/18 | • Impregnating walls, or the like, with liquids for binding dust [2006.01] | |||
E21F 5/20 | • Drawing-off or depositing dust (methods or apparatus for flushing boreholes E21B 21/00; while slitting E21C 35/22) [2006.01] | |||
E21F 7/00 | Methods or devices for drawing-off gases with or without subsequent use of the gas for any purpose [2006.01] | |||
E21F 9/00 | ||||
E21F 11/00 | Rescue devices or other safety devices, e.g. safety chambers or escape ways (breathing aids for curative purposes A61H 31/00; respiratory apparatus A62B 7/00; breathing apparatus for accidentally buried persons A62B 33/00) [2006.01] | |||
E21F 13/00 | ||||
E21F 13/02 | • in galleries [2006.01] | |||
E21F 13/04 | • in gravity inclines; in staple or inclined shafts [2006.01] | |||
E21F 13/06 | • at or adjacent to the working face [2006.01] | |||
E21F 13/08 | • Shifting conveyors or other transport devices from one location at the working face to another (guiding mining machines along conveyors for the cut mineral E21C 35/12; in combination with mine roof supports for step-by-step movement E21D 23/00) [2006.01] | |||
E21F 13/10 | • Anchorings for conveyors [2006.01] | |||
E21F 15/00 | Methods or devices for placing filling-up materials in underground workings (dams E21F 17/103) [2006.01] | |||
E21F 15/02 | • | |||
E21F 15/04 | • • Stowing mats; Goaf wire netting; Partition walls [2006.01] | |||
E21F 15/06 | • Filling-up mechanically [2006.01] | |||
E21F 15/08 | • | |||
E21F 15/10 | • • Hydraulic or pneumatic filling-up machines [2006.01] | |||
E21F 16/00 | Drainage (keeping dry foundation sites or other areas in the ground E02D 19/00) [2006.01] | |||
E21F 16/02 | • of tunnels [2006.01] | |||
E21F 17/00 | ||||
E21F 17/02 | • | |||
E21F 17/04 | • Distributing means for power supply [2006.01] | |||
E21F 17/06 | • • Distributing electric power; Cable networks; Conduits for cables (circuit arrangements for supplying or distributing electric power in general H02J) [2006.01] | |||
E21F 17/08 | • • | |||
E21F 17/10 | • • | |||
E21F 17/103 | • Dams, e.g. for ventilation [2006.01] | |||
E21F 17/107 | • • inflatable [2006.01] | |||
E21F 17/12 | • • Dam doors [2006.01] | |||
E21F 17/16 | • | |||
E21F 17/18 | • |