Patent ID: 7828326

Claim:
An airbag module for protecting a vehicle occupant, the module comprising: an inflatable bag including a main front panel for contacting the occupant and a main rear panel connected to the front panel; a generator for generating a gas in the event of a collision to inflate the inflatable bag between the occupant and the vehicle at least one retention band joined to the main front and rear panels in two opposite union areas of the edges of the main front and rear panels, the retention band being constructed and arranged to withstand a maximum pressure provided during the inflation of the bag without breaking or breaking loose from the main front and rear panels, and has a length L which is less than a maximum distance D between the opposite areas during the inflation of the bag had the retention band not been provided; at least one ventilation orifice located in one of the main front and rear panels around one of the union areas of the retention band such that the orifice closes when the front and rear panels come closer to one another when the bag contacts the occupant.