NON-SLITTED TEAR SEAM FOR MINI-WRAPPERS
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United States of America Patent
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Issued Date -
Apr 16, 2015
app pub date -
Oct 14, 2013
filing date -
Oct 14, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An airbag assembly may include an inflatable airbag with a stowed configuration and a deployed configuration, and a restraint member that keeps the inflatable airbag in the stowed configuration. The restraint member may have a frangible portion designed to tear at a pre-established threshold level of tension to permit deployment of the inflatable airbag. The frangible portion may have material that has been pre-stressed such that it has a lower strength than surrounding material. In one example, pre-stressing may be carried out by forming a crease in the frangible portion and, optionally, subjecting the frangible portion to compressive stress. When the airbag deploys, the frangible portion may predictably tear to release the airbag. The airbag assembly may be an inflatable curtain airbag, and the restraint member may one of a plurality of wrappers distributed along the length of the inflatable curtain airbag to encircle it in the stowed configuration.
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