Gas flow deflection apparatus and method for airbag systems

Details Gas flow deflection apparatus and method for airbag systems Gas flow deflection apparatus and method for airbag systems

2007-03-27

2007-03-27

Ilan, Ruth (Department: 3616)

Land vehicles

Wheeled

Attachment

C280S732000, C280S729000, C280S739000

Reexamination Certificate

active

10655456

ABSTRACT:
An airbag module may include an inflator, a cushion, and a deflection hood. When used as a passenger side, frontal impact module, the cushion deploys upward from a vehicle instrument panel. The deflection hood directs gas downward through a discharge opening and into the cushion to expedite inflation of the lower portion of the cushion to more uniformly cushion a vehicle occupant's body. The discharge opening may be sewn shut via a tear seam to ensure that the discharge opening is properly positioned when the tear seam opens to release inflation gas. Alternatively, the discharge opening may be sewn shut by a non-tearable seam, and perforations may be applied proximate the non-tearable seam so that the discharge opening opens along the perforations to release the inflation gas. According to one alternative, the deflection hood may be angled within the cushion to provide a significant asymmetrical, lateral gas flow.

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