ELECTRIC DETONATOR Russian patent published in 2000 - IPC

FIELD: ammunition, blasting operations, in particular, bridge-type detonators, for example, electric detonators that are safe due to the absence of initiator in their compound. SUBSTANCE: electric detonator case accommodates a booster charge and initiator, provided with a cap with a part of secondary explosive near the filament bridge. The other part of secondary explosive is enclosed in a thin-walled initiator case, with a washer with a central hole behind the bottom. The force of pressing of the booster charge in the case makes up 0.9 of the force of pressing of the explosive charge in the initiator case. The filament bridge is made in the form of at least four parallel connected wires. EFFECT: enhanced fire safety, resistance to the effect of electromagnetic induction, reliability in use. 2 cl, 1 dwg