Cooling or drying of air (air-conditioning rooms or spaces in general F 24 F)
Safety devices (flue-gas indicators G 01 N); Rescue devices
5
/
00
Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires (dams E 21 F 17/103; applying liquids or other fluent materials to surfaces in general B 05) [6]
5
/
02
•
by wetting or spraying
5
/
04
•
•
Spraying barriers (spray nipples, spraying in general B 05 B, B 05 D; picks with arrangement of fluid-spraying nozzles E 21 C 35/187)
5
/
06
•
•
Fluids used for spraying
5
/
08
•
Rock dusting; Depositing other protective substances
5
/
10
•
•
Devices for rock dusting
5
/
12
•
•
Composition of rock dust
5
/
14
•
Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
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 C 09 K 3/22)
5
/
18
•
Impregnating walls, or the like, with liquids for binding dust
5
/
20
•
Drawing-off or depositing dust (dust-removing while drilling E 21 C 7/00, while slitting E 21 C 35/22)
7
/
00
Methods or devices for drawing-off gases with or without subsequent use of the gas for any purpose
9
/
00
Devices preventing sparking of machines or apparatus (preventing sparking of electric machines or apparatus
H 01 K, H 02 K)
11
/
00
Rescue devices or other safety devices, e.g. safety chambers, escape ways (breathing aids for curative purposes A 61 H 31/00; respiratory apparatus A 62 B 7/00; revival apparatus A 62 B 33/00
)
13
/
00
Transport specially adapted to underground conditions (mine cars B 61 D; transport in general, loading B 65 G)
13
/
02
•
in galleries
13
/
04
•
in gravity inclines; in staple or inclined shafts
13
/
06
•
at or adjacent to the working face
13
/
08
•
Shifting conveyers or other transport devices from one location at the working face to another (guiding mining machines along conveyers for the cut mineral E 21 C 35/12; in combination with mine roof supports for step-by-step movement
E 21 D 23/00)
13
/
10
•
Anchorings for conveyers [2]
15
/
00
Methods or devices for placing filling-up materials in underground workings (dams E 21 F 17/103) [6]
15
/
02
•
Supporting means, e.g. shuttering, for filling-up materials
15
/
04
•
•
Stowing mats; Goaf wire netting; Partition walls
15
/
06
•
Filling-up mechanically
15
/
08
•
Filling-up hydraulically or pneumatically (hydraulic or pneumatic transport devices B 65 G; pipes, pipe couplings F 16 L)
15
/
10
•
•
Hydraulic or pneumatic filling-up machines
16
/
00
Drainage (keeping dry foundation sites or other areas in the ground E 02 D 19/00) [2]
16
/
02
•
of tunnels [2]
17
/
00
Methods or devices for use in mines or tunnels, not covered elsewhere (mine lighting F 21, H 05 B) [2]
17
/
02
•
Suspension devices for tubes or the like, e.g. for ventilating ducts (supporting pipes, cables or protective tubing in general
F 16 L 3/00 to F 16 L 7/00)
17
/
04
•
Distributing means for power supply [2]
17
/
06
•
•
Distributing electric power; Cable networks; Conduits for cables (circuit arrangements for supplying or distributing electric power in general
H 02 J)
17
/
08
•
•
Distributing hydraulic power; Pipe networks for hydraulic liquid (pipe-line systems in general F 17 D)
17
/
10
•
•
Distributing pneumatic power; Pipe networks for compressed air (pipe-line systems in general
F 17 D)
17
/
103
•
Dams, e.g. for ventilation [6]
17
/
107
•
•
inflatable [6]
17
/
12
•
•
Dam doors
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 B 65 G 5/00)
17
/
18
•
Special adaptations of signalling or alarm devices (for elevators, escalators or moving walkways
B 66 B; gas-sensitive devices per seG 01 N)
