|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

WEAPONS; BLASTING

|  | F42 |
AMMUNITION; BLASTING

|  | F42 |
Note(s) This class covers also means for practice or training which may have aspects of simulation, although simulators are generally covered by class Fulltext... Hierarchy... Expanded...G09. In this class, the following terms or expressions are used with the meanings indicated: "primer" effects the first explosive step in the sequence of explosion; [2] "percussion cap" means a primer which is struck to explode; [2] "igniter" effects the first spark-producing or heat-producing step but may not be explosive; [2] "firing-means" or "initiator" (used respectively in the arts of weaponry and blasting) means a device acting directly on the primer, which device may or may not form part of the fuze; [2] "detonator" or "detonator charge" means a charge used to amplify the explosion of the primer; [2] "fuze" means an assembly or mechanism which incorporates safety and arming means in order that the explosion can only take place under certain conditions; this assembly or mechanism determines also the moment (instantaneous or delayed) or the manner, e.g. impact, proximity, hydrostatic pressure, of the firing; [2] "ammunition" covers propulsive charge and projectile whether or not forming a single body, unless otherwise made clear; [2] "projectile", "missile" or "projectile or missile" means any body which is projected or propelled; [4] "guided missile" means projectile or missile which is guided during at least part of its trajectory; [4] "rocket" means projectile or missile which is self-propelled, during at least part of its trajectory, by a rocket engine, i.e. by a jet-propulsion engine carrying both fuel and oxidant therefor; [4] "fuse" or "fuse cord" means a continuous train of explosive enclosed in a usually flexible cord or cable for setting-off an explosive charge in the art of blasting. [5]

|  | F42D |
BLASTING (fuses, e.g. fuse cords, Fulltext... Hierarchy... Expanded...C06C 5/00; blasting cartridges Fulltext... Hierarchy... Expanded...F42B 3/00)

|  | F42D 1/00 |
Blasting methods or apparatus, e.g. for loading or tamping

|  | F42D 1/02 |
· | Arranging blasting cartridges to form an assembly (adaptation of blasting cartridges therefor Fulltext... Hierarchy... Expanded...F42B 3/02)

|  | F42D 1/04 |
· | Arrangements for ignition

|  | F42D 1/045 |
· · | Arrangements for electric ignition (dynamo-electric generators Fulltext... Hierarchy... Expanded...H02K) [5]

|  | F42D 1/05 |
· · · | Electric circuits for blasting [5]

|  | F42D 1/055 |
· · · · | specially adapted for firing multiple charges with a time delay [5]

|  | F42D 1/06 |
· · | Relative timing of multiple charges (Fulltext... Hierarchy... Expanded...F42D 1/055 takes precedence)

|  | F42D 1/08 |
· | Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor [5]

|  | F42D 1/10 |
· · | Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure [5]

|  | F42D 1/12 |
· · | Feeding tamping material by pneumatic or hydraulic pressure [5]

|  | F42D 1/14 |
· · | Hand-operated tamping or loading [5]

|  | F42D 1/16 |
· · · | Tamping tools [5]

|  | F42D 1/18 |
· · | Plugs for boreholes [5]

|  | F42D 1/20 |
· · | Tamping cartridges, i.e. cartridges containing tamping material (flexible or deformable blasting cartridges Fulltext... Hierarchy... Expanded...F42B 3/087) [5]

|  | F42D 1/22 |
· · | Means for holding or positioning blasting cartridges or tamping cartridges in boreholes [5]

|  | F42D 1/24 |
· · | characterised by the tamping material [5]

|  | F42D 1/26 |
· · · | Tamping with foaming agents [5]

|  | F42D 1/28 |
· · · | Tamping with gelling agents [5]

|  | F42D 3/00 |
Particular applications of blasting techniques

|  | F42D 3/02 |
· | for demolition of tall structures, e.g. chimney stacks

|  | F42D 3/04 |
· | for rock blasting

|  | F42D 3/06 |
· | for seismic purposes

|  | F42D 5/00 |
Safety arrangements

|  | F42D 5/02 |
· | Locating undetonated charges

|  | F42D 5/04 |
· | Rendering explosive charges harmless, e.g. destroying ammunition (extracting primers, dismantling ammunition Fulltext... Hierarchy... Expanded...F42B 33/04, Fulltext... Hierarchy... Expanded...F42B 33/06); Rendering detonation of explosive charges harmless [5]

|  | F42D 5/045 |
· · | Detonation-wave absorbing or damping means [5]

|  | F42D 5/05 |
· · · | Blasting mats [5]

|  | F42D 5/055 |
· · | Silencing means for blasting operations (Fulltext... Hierarchy... Expanded...F42D 5/045 takes precedence) [5]

|  | F42D 5/06 |
· | Unloading boreholes

|  | F42D 7/00 |
Other blasting