Electro-pyrotechnic initiator built around a complete printed circuit
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United States of America Patent
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May 21, 2002
Grant Date -
Sep 20, 2001
app pub date -
Mar 9, 1998
filing date -
Mar 7, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an initiator for a pyrotechnic gas generator intended for motor vehicle safety. The initiator (2) is built from a circuit support (10) on which conductive strips are printed which include electromagnetic protection and the ends of which are joined together by a resistive element covered with a thermosensitive charge (6). The conductive strips are connected to an electric cable (3). The support (10) is coated in a cylindrical overmoulded insulation (4, 5). A fragmentable cylindrical cap (8) containing an igniter composition (9) forms, together with the initiator (2), an igniter (1) for pyrotechnic generators intended for motor vehicle safety.
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