Ammunition and explosives – Igniting devices and systems – Fuse cord
Reexamination Certificate
2006-06-14
2008-10-14
Bergin, James S (Department: 3641)
Ammunition and explosives
Igniting devices and systems
Fuse cord
C102S275100
Reexamination Certificate
active
07434515
ABSTRACT:
A small diameter shock tube of unique internal surface configuration such that the powder loading per meter of tubing can be higher than achieved with conventional shock tube. The outside diameter of the tube is less than 0.10″, preferably 0.085″ with inner and outer layers of different polymeric material bonded together in a coextrusion process. The inside surface of the shock tube has radially inwardly projecting ribs or protuberances that result in an increase of the internal perphi of the inner surface cross section achieving a 30% increase so that powder loading per meter of the tube can be kept in a safe range.
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Bergin James S
Detotec North America, Inc.
McCormick Paulding & Huber LLP
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