Abrégé

An explosive booster shaped to fit into a blasthole adjacent a main explosive charge is provided. The booster comprises a body containing a charge of an explosive substance with a passage extending inwardly of the body to receive a detonator therein. The booster is configured to alter the shape of a detonation wave generated upon initiation of the detonator. In an embodiment, the booster includes a first and a second explosive substance, with the first explosive substance being shaped and selected to cause an outer portion of the detonation wave to accelerate relative to the remainder of the wave thereby altering the shape of the wave from a generally spherical wave to a generally planar wave. In an embodiment, the booster includes an internal member capable of altering the shape of the detonation wave.

Classes IPC  ?

• F42B 1/04 - Charges de détonateurs ne faisant pas partie de la fusée
• F42C 19/09 - Amorces ou détonateurs munis d'une charge creuse
• F42B 3/26 - Dispositions pour le montage d'amorces-détonateursAccessoires à cet effet, p. ex. outils
• F42B 3/22 - Dispositifs pour commander ou guider l'onde de détonation, p. ex. tubes
• F42B 1/024 - Charges creuses ou profilées comportant un écran en matière inerte, encastré dans la charge explosive

Abrégé

An explosive booster (10) shaped to fit into a blasthole adjacent a main explosive charge is provided. The booster (10) comprises a body (12) containing a charge of an explosive substance (22) with a passage (24) extending inwardly of the body (12) to receive a detonator (26) therein. The booster (10) is configured to alter the shape of a detonation wave generated upon initiation of the detonator (26). In an embodiment, the booster (10) includes a first (32) and a second explosive substance (34), with the first explosive substance (32) being shaped and selected to cause an outer portion of the detonation wave to accelerate relative to the remainder of the wave thereby altering the shape of the wave from a generally spherical wave to a generally planar wave. In an embodiment, the booster includes an internal member capable of altering the shape of the detonation wave.

Classes IPC  ?

• F42B 1/00 - Charges explosives caractérisées par leur forme ou leur configuration mais ne dépendant pas de la forme de l'enveloppe
• F42B 3/08 - Cartouches de sautage, c.-à-d. enveloppes avec explosif avec des cavités dans la charge, p. ex. cartouches de sautage à charge creuse
• F42B 3/22 - Dispositifs pour commander ou guider l'onde de détonation, p. ex. tubes
• F42C 19/09 - Amorces ou détonateurs munis d'une charge creuse
• F42B 3/26 - Dispositions pour le montage d'amorces-détonateursAccessoires à cet effet, p. ex. outils