An air-bag is adapted to be positioned on the floor pan of a vehicle in the foot-well, to be located beneath the feet of an occupant of the vehicle. The air-bag unit is an upper cover located above an air-bag. On inflation of the air-bag, the cover is lifted from its initial position to an elevated position....http://www.google.co.uk/patents/US6962368?utm_source=gb-gplus-sharePatent US6962368 - Load distribution element for an air-bag