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CPC
COOPERATIVE PATENT CLASSIFICATION
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F42D
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 )
WARNING
-
The following IPC groups are not used in the CPC scheme. Subject matter covered by these groups is classified in the following CPC groups:
F42D7/00 covered by F42D 1/00 , F42D 3/00

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F42D 1/00
Blasting methods or apparatus, e.g. loading or tamping
F42D 1/02
.
Arranging blasting cartridges to form an assembly ( adaptation of blasting cartridges therefor F42B 3/02 )
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F42D 1/04
.
Arrangements for ignition
{
( ignition systems for shaped charge perforators E21B 43/1185 ; ignition devices for seismic energy generators G01V 1/06 )
}
F42D 1/041
. .
{
Tools for adapting cartridges for the mounting of detonators ( Cartridges specially adapted for the mounting of detonators F42B 3/26 )
}
F42D 1/042
. .
{
Logic explosive circuits, e.g. with explosive diodes
}
F42D 1/043
. .
{
Connectors for detonating cords and ignition tubes, e.g. Nonel tubes ( mounting of detonators in blasting cartridges F42B 3/26 )
}
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F42D 1/045
. .
Arrangements for electric ignition ( dynamo-electric generators H02K )
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F42D 1/05
. . .
Electric circuits for blasting
F42D 1/055
. . . .
specially adapted for firing multiple charges with a time delay
F42D 1/06
. .
Relative timing of multiple charges (
{
F42D 1/043 and
}
 F42D 1/055 take precedence )
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F42D 1/08
.
Tamping methods ; Methods for loading boreholes with explosives ; Apparatus therefor
F42D 1/10
. .
Feeding explosives in granular or slurry form ; Feeding explosives by pneumatic or hydraulic pressure
F42D 1/12
. .
Feeding tamping material by pneumatic or hydraulic pressure
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F42D 1/14
. .
Hand-operated tamping or loading
F42D 1/16
. . .
Tamping tools
F42D 1/18
. .
Plugs for boreholes
F42D 1/20
. .
Tamping cartridges, i.e. cartridges containing tamping material ( flexible or deformable blasting cartridges F42B 3/087 )
F42D 1/22
. .
Methods for holding or positioning for blasting cartridges or tamping cartridges
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F42D 1/24
. .
characterised by the tamping material
F42D 1/26
. . .
Tamping with foaming agents
F42D 1/28
. . .
Tamping with gelling agents
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F42D 3/00
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
}
F42D 3/02
.
for demolition of tall structures, e.g. chimney stacks
F42D 3/04
.
for rock blasting
F42D 3/06
.
for seismic purposes
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F42D 5/00
Safety arrangements
F42D 5/02
.
Locating undetonated charges
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F42D 5/04
.
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
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F42D 5/045
. .
Detonation-wave absorbing or damping means
F42D 5/05
. . .
Blasting mats
F42D 5/055
. .
Silencing means for blasting operations
F42D 5/06
.
Unloading boreholes
F42D 99/00
Subject matter not provided for in other groups in this subclass
This page is owned by Office of Patent Classification.
Last Modified: 04/16/2013 4:31:16 PM