Patent ID: 7963557

Claim:
An airbag for protecting a vehicle occupant comprising: a first material layer and a second material layer each having edge regions, wherein the first and the second material layers are attached together at a surrounding seam along the edge regions, the first and the second material layers forming an inflatable region; a fastening section adapted for attaching to a part of the vehicle and connected to a gas generator configured to inflate the airbag inflatable region with a gas in response to a vehicle collision; and the inflatable region forming a first chamber region and a second chamber region which are separated from one another by a dividing seam, wherein each of the material layers includes a first material section and a second material section with the first and the second material sections of each of the material layer overlapping and joined together at joining seams for each of the material layer, wherein at least a portion of the dividing seam joins the overlapping of the first and the second material sections of both the first and the second material layers together via one or more stitches that extend continuously through the overlapping of the first and the second material sections of both the first and the second material layers, wherein each of the first material sections are matched to the first chamber region and the second material sections are matched to the second chamber region; and wherein one of the first and the second material sections of the first material layer and one of the first and the second material sections of the second material layer are from a single cutting, which defines a first butterfly-like shape with an axis of symmetry about its center.