Signal transmission fuse
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United States of America Patent
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Oct 14, 2008
Grant Date -
Dec 20, 2007
app pub date -
Jun 14, 2006
filing date -
Jun 14, 2006
priority date (Note) -
Expired
status (Latency Note)
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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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