Ammunition and explosives – Igniting devices and systems – Electrical primer or ignitor
Patent
1989-01-27
1990-05-01
Brown, David H.
Ammunition and explosives
Igniting devices and systems
Electrical primer or ignitor
1022755, 1022756, F42B 1908, F42B 1912, F42D 104
Patent
active
049208837
ABSTRACT:
In a high pressure, high temperature detonator for deep well use, an improved device is disclosed. It includes an elongate housing with axial bore and an electrical conductor at one end. A first explosive initiator is electrically ignited. In turn, a sleeve having a transverse bulkhead aligns one or more secondary explosive transfer pellets. The transfer pellets cooperate in ignition of the detonating cord. The secondary explosive pellets and sleeve are configured into described shapes to focus the shock wave for cord ignition.
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Beard William J.
Brown David H.
Halliburton Logging Services Inc.
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