Ammunition and explosives – Igniting devices and systems – Ignition or detonation circuit
Patent
1991-01-28
1992-03-10
Johnson, Stephen
Ammunition and explosives
Igniting devices and systems
Ignition or detonation circuit
102220, 1022028, 89 115, F42D 105
Patent
active
050941674
ABSTRACT:
A new shape charge includes an integrated circuit semiconductor bridge detonating device responsive to ordinary current for triggering a switch in the detonating device and igniting a pyrotechnic composition on a small integrated circuit semiconductor bridge in the detonation device in response to the current, thereby igniting an explosive material in the shape charge and firing the shape charge. Since the integrated circuit detonating device is utilized, responsive to ordinary current for detonation, prior art detonating cords are not needed. A plurality of shape charges in a perforating gun are fired substantially simultaneously using the new shape charge of the present invention.
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Bouchard John H.
Garrana Henry N.
Johnson Stephen
Schlumberger Technology Corporation
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