Device for cutting a structure in a motor vehicle
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United States of America Patent
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Issued Date -
Oct 6, 2005
app pub date -
Feb 25, 2005
filing date -
Apr 2, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The technical field of the invention is that of motor vehicle safety involving devices for cutting a structure such as, for example, an instrument panel, so as to actuate a safety device. The object of the present invention relates more specifically to a device (1) for cutting a structure in a motor vehicle comprising a linear pyrotechnic charge (5) placed inside a flattened deformable tube (6), combustion of the said charge (5) bringing about deformation of the tube (6) which increases its cross section, the said deformation causing the structure (3) to break. The main characteristic of this device is that the combustion rate of the pyrotechnic charge (5) is less than 3000 m/s.
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