An airbag (10) has an inflatable chamber (301) defined by a main front panel (12) and a pair of side panels (24), (26). The airbag (10) has a vertically oriented recessed portion (20) on the main panel (12) located on a lower portion of an airbag (10), preferably vertically at or below a gas inlet passageway...http://www.google.es/patents/US7131664?utm_source=gb-gplus-sharePatente US7131664 - Airbag with a strategically placed recess
