Land vehicles – Wheeled – Attachment
Reexamination Certificate
2005-12-06
2005-12-06
Dunn, David R. (Department: 3616)
Land vehicles
Wheeled
Attachment
Reexamination Certificate
active
06971671
ABSTRACT:
Enhanced airbag modules and associated methods are provided. An airbag module according to the invention may have a cushion with a venting portion. During normal vehicle operation, the venting portion may be closed so that inflation gas is not permitted to flow through the venting portion. A pyrotechnic may be ignited to open the venting portion when venting is desired. The pyrotechnic may be directly attached to the venting portion to burn through or mechanically rupture the venting portion, thereby forming an exit port. Alternatively, the venting portion may have a flap that can be detached from the housing by ignition of a pyrotechnic to permit venting through an exit port of the housing. The pyrotechnic may then be disposed within a fastener designed to fracture upon ignition of the pyrotechnic to release the flap from attachment to the housing. The pyrotechnic may, for example, be an initiator or rapid deflagration cord (RDC). The cushion may thus be more stiffly inflated for a high velocity collision, or less stiffly inflated in the case of a lower impact velocity or an out-of-position occupant.
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DePottey Timothy A.
Schneider David W.
Autoliv ASP Inc.
Brown Sally J.
Dunn David R.
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