Patent ID: 7922191

Claim:
An airbag cushion with multiple chambers comprising: an inner chamber that is connected to directly receive inflation gas from an inflator; and a first chamber and a second chamber that are connected to the inner chamber respectively to receive the inflation gas from the inner chamber; wherein at least one vent hole is formed on a boundary of the inner chamber such that the amount of inflation gas supplied to the second chamber is larger than the amount of inflation gas supplied to the first chamber, wherein the inner chamber is inflatable by receiving the inflation gas, wherein a first inner vent hole and a second inner vent hole are formed on the boundary of the inner chamber, the first vent hole allowing inflation gas to pass into the first chamber and the second vent hole allowing inflation gas to pass into the second chamber; and a diffuser and an airbag module housing comprising an inflator; wherein the inner chamber, the first chamber, and the second chamber are formed by a cushion sheet making a single closed surface; wherein the inner chamber is formed by a portion of the cushion sheet recessed from the front portion of the airbag cushion and toward the inside of the airbag cushion; wherein a portion of the cushion sheet overlaps to form the inner chamber and a tether; wherein the diffuser is located inside the inner chamber; and wherein the diffuser passes through the cushion sheet at least two times and is connected to the inflator.