Patent ID: 9476685
Filing Date: 2016-10-25
CPC Classification: C06B,E21B,F23Q,F42B,F42C,F42D,Y10T

Claim Text:
1. A detonation control circuit, comprising: a delay timer that produces a delay; a first field-effect transistor (FET) activated by a trigger input signal, the first FET driving the delay timer when activated; a pulse-shaping timer triggered by the delay timer after the delay, the pulse-shaping timer providing a pulse waveform; a transistor driver circuit activated by the pulse waveform, a second FET activated by the transistor driver circuit; a light-producing diode activated when the second FET is activated; a high-voltage capacitor; and an optically triggered diode coupled between the high-voltage capacitor and a detonator, wherein the optically triggered diode is positioned such that when the light-producing diode is activated, the light-producing diode illuminates and activates the optically triggered diode, and wherein activation of the optically triggered diode causes the high-voltage capacitor to release a power pulse that triggers the detonator.