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Air bag with releasable tethers

  • US 5,249,825 A
  • Filed: 07/13/1992
  • Issued: 10/05/1993
  • Est. Priority Date: 07/13/1992
  • Status: Expired due to Term
First Claim
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1. In a vehicle air bag assembly mounted on a vehicle structure and having an inflator for inflating an air bag from a folded condition, adjacent said structure, to a fully deployed condition, located rearwardly of the structure, an air bag comprisinga fabric body,a gas inlet in the body surrounding the inflator for receiving pressure gas therefrom to inflate the air bag,a crown on the body located opposite the gas inlet and having a center,a plurality of tethers each having an outer end secured to the crown and an inner end,friction clamping engagement means for releasably attaching the inner ends of the tethers to vehicle structure adjacent the gas inlet for release therefrom when pressure gas has exerted a predetermined release force on the crown during inflation, thus delaying deployment of a portion of the air bag until after deployment of the remainder of the air bag, while enabling eventual full deployment of the entire air bag.

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