Patent ID: 6554316
Filing Date: 2003-04-29
Classification: B60R

Abstract:
An airbag comprising:a front panel, the front panel forming an impact surface for the airbag; a rear panel having an airbag mouth and a first vent hole disposed therein, wherein the rear panel is connected to the front panel along the respective circumferential peripheries of said front panel and said rear panel, the rear panel forming a rear surface for the airbag; a middle panel connected between the front panel and the rear panel such that said airbag is divided into a first chamber behind the middle panel and a second chamber in front of the middle panel; a second vent hole disposed in the middle panel such that inflation of the airbag brings the second vent hole in line with the first vent hole to form a vent passage between the second chamber and an area external to said airbag; and a middle panel passage hole disposed in the middle panel and configured to channel gas from the first chamber to the second chamber throughout the inflation phase of the airbag.