A venting system venting inflated inflatables at a predetermined time period after inflation utilizes non-flaming pyrotechnic materials. The system is used in the restraint system of a vehicle and senses the initiation of a crash pulse to control the passage of inflation fluid to the inflatable. A pyrotechnic...http://www.google.fr/patents/US6131949?utm_source=gb-gplus-shareBrevet US6131949 - Venting systems for inflatables