Patent ID: 8322747

Claim:
An inflatable airbag assembly, comprising: an inflatable side airbag having an inboard panel, an outboard panel, and a top panel, wherein the inboard and outboard panels comprise upper portions and lower portions, and wherein the inboard and outboard panels are coupled together at bottom portions of the inboard and outboard panels and each of the upper portions of the inboard and outboard panels are coupled to the top panel, such that the side airbag comprises an upper region and a lower region, wherein an average cross-sectional width of the upper region is greater than an average cross-sectional width of the lower region wherein the upper region comprises an upper chamber and the lower region comprises a lower chamber, wherein the top panel is tucked into the upper chamber and is retained in a tucked configuration prior to deployment of the inflatable side airbag, and wherein the top panel is configured such that, after deployment of the lower chamber, inflation gas causes the top panel to become untucked and fully expanded, which expands the width and height of the upper chamber.