Blasting methods or apparatus, e.g. for loading or tamping
1
/
02
•
Arranging blasting cartridges to form an assembly (adaptation of blasting cartridges therefor F 42 B 3/02)
1
/
04
•
Arrangements for ignition
1
/
045
•
•
Arrangements for electric ignition (dynamo-electric generators H 02 K) [5]
1
/
05
•
•
•
Electric circuits for blasting [5]
1
/
055
•
•
•
•
specially adapted for firing multiple charges with a time delay [5]
1
/
06
•
•
Relative timing of multiple charges (F 42 D 1/055 takes precedence)
1
/
08
•
Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor [5]
1
/
10
•
•
Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure [5]
1
/
12
•
•
Feeding tamping material by pneumatic or hydraulic pressure [5]
1
/
14
•
•
Hand-operated tamping or loading [5]
1
/
16
•
•
•
Tamping tools [5]
1
/
18
•
•
Plugs for boreholes [5]
1
/
20
•
•
Tamping cartridges, i.e. cartridges containing tamping material (flexible or deformable blasting cartridges F 42 B 3/087) [5]
1
/
22
•
•
Means for holding or positioning blasting cartridges or tamping cartridges in boreholes [5]
1
/
24
•
•
characterised by the tamping material [5]
1
/
26
•
•
•
Tamping with foaming agents [5]
1
/
28
•
•
•
Tamping with gelling agents [5]
3
/
00
Particular applications of blasting techniques
3
/
02
•
for demolition of tall structures, e.g. chimney stacks
3
/
04
•
for rock blasting
3
/
06
•
for seismic purposes
5
/
00
Safety arrangements
5
/
02
•
Locating undetonated charges
5
/
04
•
Rendering explosive charges harmless, e.g. destroying ammunition (extracting primers, dismantling ammunition F 42 B 33/04, F 42 B 33/06); Rendering detonation of explosive charges harmless [5]
5
/
045
•
•
Detonation-wave absorbing or damping means [5]
5
/
05
•
•
•
Blasting mats [5]
5
/
055
•
•
Silencing means for blasting operations (F 42 D 5/045 takes precedence) [5]
