Ammunition and explosives – Igniting devices and systems – Initiating devices
Reexamination Certificate
2009-04-24
2011-11-15
Bergin, James (Department: 3641)
Ammunition and explosives
Igniting devices and systems
Initiating devices
C102S305000, C102S202000
Reexamination Certificate
active
08056478
ABSTRACT:
A method for initiating a low-sensitivity explosive charge includes initiating a booster explosive charge within an explosive charge cavity in a booster housing, and generating a planar detonation wave. Generating the planar detonation wave includes directing a detonation wave through the booster housing along a first waveshaper surface of a detonation waveshaper. The detonation wave is directed around the first waveshaper surface toward a second tapered waveshaper surface. After progressing around the first waveshaper surface, the detonation wave is directed along the second tapered waveshaper surface. The detonation wave changes into a planar detonation wave as the detonation wave moves along the second tapered waveshaper surface, the planar detonation wave includes a planar wave front. The planar detonation wave strikes a flyer plate coupled over the explosive charge cavity of the booster housing, and the planar wave front makes planar contact along an inner face of the flyer plate.
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“International Application Serial No. PCT/US2009/002538, Search Report mailed Jan. 7, 2010”, 2 pgs.
“International Application Serial No. PCT/US2009/002538, Written Opinion mailed Jan. 7, 2010”, 10 pgs.
Berlin Bryan F.
Christianson Kim L.
Bergin James
Raytheon Company
Schwegman Lundberg & Woessner, P.A.
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