Electronic delayed-action explosive detonator

Ammunition and explosives – Igniting devices and systems – Ignition or detonation circuit

Patent

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Details

102215, 1022027, F42C 1106

Patent

active

047305584

ABSTRACT:
An electronic delayed-action explosive detonator comprising a tubular case, a capacitor chargeable by pulses from a blasting machine, an integrated circuit for processing pulses from the blasting machine to set a delay time, the integrated circuit controlling the elapse of the delay time after the delay time has been set, a primer to which current is supplied upon elapse of the delay time for enabling detonation, and detonator wires extending from the tubular case for enabling connection of the blasting machine to at least one of the capacitor and integrated circuit. A supporting plate arrangement for carrying the integrated circuit is disposed in series with the capacitor within the tubular case. The supporting plate has a first contact area with connecting pads for enabling attachment of leads of the capacitor, and a second contact area with connecting pads for enabling attachment of the detonator wires which are within the tubular case and extend outwardly therefrom.

REFERENCES:
patent: 2943569 (1960-07-01), Wolfe
patent: 3181464 (1965-05-01), Parker et al.
patent: 4015531 (1977-04-01), Ziemba
patent: 4311096 (1982-01-01), Oswald
patent: 4445435 (1984-05-01), Oswald
patent: 4586437 (1986-05-01), Miki et al.

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