E
FIXED CONSTRUCTIONS
EARTH OR ROCK DRILLING; MINING
E21
EARTH OR ROCK DRILLING; MINING

Note(s)

  • In this class, the following term is used with the meaning indicated:
    • "drilling" covers boring and vice versa.
E21F
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS [2]
Subclass index
VENTILATION 1/00, 3/00
DRAINAGE 16/00
SAFETY DEVICES, RESCUE DEVICES 5/00-11/00
TRANSPORT; FILLING-UP 13/00, 15/00
OTHER METHODS OR DEVICES 17/00
Ventilation of mines or tunnels
E21F 1/00
Ventilation of mines or tunnels; Distribution of ventilating currents (ventilating rooms or spaces in general F24F) [2006.01]
E21F 1/02
Test models (analogue computers therefor G06G 7/50) [2006.01]
E21F 1/04
Air ducts (suspension devices E21F 17/02) [2006.01]
E21F 1/06
Duct connections (tube connections in general F16L) [2006.01]
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
Air doors (doors in general E06B) [2006.01]
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
Gravity-flow ventilation (E21F 1/02-E21F 1/16 take precedence) [2006.01]
E21F 3/00
Cooling or drying of air (air-conditioning rooms or spaces in general F24F) [2006.01]
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
Layers of hygroscopic or other salts deposited on floors, walls, or the like, for binding dust; Deposition of such layers (dust-absorbing materials in general C09K 3/22) [2006.01]
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
Devices preventing sparking of machines or apparatus (preventing sparking of electric machines or apparatus H01K, H02K) [2006.01]
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
Transport specially adapted to underground conditions (mine cars B61D; transport in general, loading B65G) [2006.01]
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
Supporting means, e.g. shuttering, for filling-up materials [2006.01]
E21F 15/04
Stowing mats; Goaf wire netting; Partition walls [2006.01]
E21F 15/06
Filling-up mechanically [2006.01]
E21F 15/08
Filling-up hydraulically or pneumatically (hydraulic or pneumatic transport devices B65G; pipes, pipe couplings F16L) [2006.01]
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
Methods or devices for use in mines or tunnels, not covered elsewhere (mine lighting F21, H05B) [2006.01]
E21F 17/02
Suspension devices for tubes or the like, e.g. for ventilating ducts (supporting pipes, cables or protective tubing in general F16L 3/00-F16L 7/00) [2006.01]
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
Distributing hydraulic power; Pipe networks for hydraulic liquid (pipe-line systems in general F17D) [2006.01]
E21F 17/10
Distributing pneumatic power; Pipe networks for compressed air (pipe-line systems in general F17D) [2006.01]
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
Modification of mine passages or chambers for storage purposes, especially for liquids or gases (storing fluids in natural or artificial cavities or chambers in the earth B65G 5/00) [2006.01]
E21F 17/18
Special adaptations of signalling or alarm devices (for elevators, escalators or moving walkways B66B; gas-sensitive devices per se G01N) [2006.01]