Electronic delay detonator

Details Electronic delay detonator Electronic delay detonator

1984-04-18

1986-05-06

Jordan, Charles T.

Ammunition and explosives

Igniting devices and systems

Ignition or detonation circuit

102206, 102218, F42C 1106

Patent

active

045864373

ABSTRACT:
An electronic delay detonator actuated after the lapse of a predetermined delay time from the application of an input power source, comprises a capacitor for storing the electrical energy supplied from the input power source, a diode bridge for preventing the stored electrical energy from being released reversely toward the input power source, a CR oscillator, a counter for generating a signal upon having counted a pulse signal produced from the CR oscillator by a predetermined number, and a thyristor driven by the signal for supplying the electrical energy stored in the capacitor to an ignition device in the detonator, the delay time being accurately determined by counting the pulses generated from the CR oscillator.

REFERENCES:
patent: 4145970 (1979-03-01), Hedberg et al.
patent: 4240350 (1980-12-01), Munzel
patent: 4311096 (1982-01-01), Oswald
patent: 4445435 (1984-05-01), Oswald
patent: 4480550 (1984-11-01), Abt
patent: 4487125 (1984-12-01), Zuk

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