Explosives booster
AssigneeEnsign-Bickford (South Africa Proprietary) Limited
InventorLlewellyn Dippenaar
Life of this patent
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Abstract
An explosives booster (10) intended for igniting a main explosive charge is provided which includes a first explosive charge (15) which is sensitive enough to be ignited by the explosion of a charge from a detonator (13); and a second explosive (16) charge which is less sensitive to ignition that the first charge, (15) but more sensitive to ignition than the main charge. The first charge may comprise a 60/40, and the second charge a 40/60, PETN/TNT pentolite mixture.
Claims9
An explosives booster for igniting a main explosive charge, the booster including a first explosive charge that is sensitive to ignition by a detonator, and a second explosive charge that is less sensitive to ignition than the first charge, but more sensitive to ignition than the main charge, the booster further including a hollow body of generally conical configuration in longitudinal cross section, and comprising a hollow cup for receiving the second charge, and a hollow elongate stem projecting radially outwardly from the apex of the cup and having a bore for receiving the detonator, wherein the end of the bore of the stem closest to the apex of the cup flares outwardly in the direction of the cup to define a compartment for receiving the first explosive charge.
Dependencies are inferred from the claim text.