Electrothermal ignition device and method for producing the device
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United States of America Patent
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Jun 17, 2003
Grant Date -
Jan 17, 2002
app pub date -
Apr 23, 2001
filing date -
Apr 22, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an electrothermal ignition device for igniting a powder propellant charge (4), which comprises at least one electrically-conductive wire (11; 15; 19; 22), that extends, at least partially, through the propellant charge, and can be connected to a current source (3). The electrically-conductive wire (11; 15; 19; 22) is coated with a pyrotechnical ignition mixture (12; 16; 20)so that the ignition device can have a low electrical-energy requirement and be easily adapted to the different requirements placed on it. A mixture on a potassium perchlorate-zirconium (KClO.sub.4 --Zr) base has proven to be an advantageous ignition mixture.
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