Patent ID: 7255367

Claim:
An air bag, comprising: a. A first opening adapted to receive inflation gas from an air bag inflator; b. a first air bag cushion portion; c. a second air bag cushion portion, wherein a first inboard boundary of said first air bag cushion portion is joined to a second inboard boundary of said second air bag cushion portion so that said first and second air bag cushion portions constitute a bi-lobular air bag cushion in fluid communication with said first opening; d. a first inner panel adapted to divide said first air bag cushion portion into a first chamber and a second chamber, wherein said first chamber is inboard of said second chamber, said first inner panel is adapted to provide for fluid communication between said first chamber and said second chamber proximate to a first end of said first air bag cushion portion, and said first end of said first air bag cushion portion is relatively distal with respect to said first opening; and e. a second inner panel adapted to divide said second air bag cushion portion into a third chamber and a fourth chamber, wherein said third chamber is inboard of said fourth chamber, said second inner panel is adapted to provide for fluid communication between said third chamber and said fourth chamber proximate to a first end of said second air bag cushion portion, said first end of said second air bag cushion portion is relatively distal with respect to said first opening, and said first chamber is in fluid communication with said third chamber at said first and second inboard boundaries.