An air restraint system has an airbag which is deployable between an instrument panel and an occupant seat within an automotive vehicle. The airbag includes first and second air chambers which are separated to restrict flow therebetween by a single panel member. The first and second chambers of the airbag...http://www.google.fr/patents/US6616177?utm_source=gb-gplus-shareBrevet US6616177 - Dual depth airbag
