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BLASTING ( fuses, e.g. fuse cords, C06C 5/00 ; { for obtaining fluid from wells E21B 43/00 ; for mining or quarring E21C 37/00 ; for making tunnels or galleries E21D 9/006} ; cartridges F42B 3/00)
Definition statement
This subclass/group covers:

This subclass covers devices and methods for blasting for both civilian and military applications. The documentation is also organised according to the particular blasting operations. Further it includes particular safety arrangements for blasting or detonations.

Relationship between large subject matter areas

C06B : Chemical aspects of explosives, explosive compositions

C06C:Chemical aspects of primers and detonators

References relevant to classification in this subclass
This subclass/group does not cover:
Fuses, e.g. fuse cords
Blasting cartridges
Informative references
Attention is drawn to the following places, which may be of interest for search:
For obtaining fluid from wells
For mining or quarring
For making tunnels or galleries
Seismic investigation using explosives
Blasting methods or apparatus, e.g. loading or tamping
Definition statement
This subclass/group covers:

Devices and methods for blasting, including the arrangement of blasting cartridges as the smallest explosive unit into assemblies, pyrotechnic, electric and electronic ignition arrangements, in particular for the timed ignition of a multitude of single blasting units, and methods and apparatus for the tamping or loading of explosives. Further includes set-ups for breaching of doors or walls.

{Logic explosive circuits, e.g. with explosive diodes}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Electric circuits for blasting
F41D1/05
{Connectors for detonating cords and ignition tubes, e.g. Nonel tubes ( mounting of detonators in blasting cartridges F42B 3/26) }
References relevant to classification in this group
This subclass/group does not cover:
Mounting of detonators in blasting cartridges
Informative references
Attention is drawn to the following places, which may be of interest for search:
Fuze connectors
Particular applications of blasting techniques { explosive welding B23K 20/08 ; explosive bolts or actuators F42B 3/00 D; explosive valves F16K 13/06 ; cutting devices actuated by explosion B23D 15/14 B; pyrotechnical actuators F15B 15/19 ; switching devices actuated by explosion H01H 39/00}
Relationship between large subject matter areas
Cleaning by explosions
Well/Drilling blast units, perforating guns
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cutting devices actuated by explosion
Explosive welding
Pyrotechnical actuators
Explosive valves
Explosive bolts or actuators
Switching devices actuated by explosion
for seismic purposes
Informative references
Attention is drawn to the following places, which may be of interest for search:
Generating seismic energy using explosive charges
Safety arrangements
Definition statement
This subclass/group covers:

Methods and devices for increasing the safety of blasting operation, e.g. during blasting operation by providing a physical detonation wave absorbing shield, or the identification, neutralisation and removal of explosives in cases where the explosive did not detonate (abort of operation, malfunction/dud or decommissioning).

Rendering explosive charges harmless, e.g. destroying ammunition ( {F42B 39/14 and F42B 39/20 take precedence } ; extracting primers, dismantling ammunition F42B 33/04 , F42B 33/06 ; { chemical deactivating of explosives C06B 21/0091} ) ; Rendering detonation of explosive charges harmless
References relevant to classification in this group
This subclass/group does not cover:
Fitting or extracting primers in or from fuzes or charges
Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs
Explosion or fire protection arrangements on packages or ammunition
Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable
Informative references
Attention is drawn to the following places, which may be of interest for search:
Elimination of undesirable or temporary components of an intermediate or finished product, e.g. making porous or low density products, purifying, stabilising, drying; Deactivating; Reclaiming
Detonation-wave absorbing or damping means
Definition statement
This subclass/group covers:

This group includes all means to avoid the propagation of the detonation or blast wave during the destruction of ammunition by controlled detonation in a pressure chamber which is able to withstand a detonation inside. Also includes detonation wave guiding means.

References relevant to classification in this group
This subclass/group does not cover:
Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs by combustion
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Last Modified: 10/11/2013