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Inflatable vehicle occupant restraint and system therefor

  • US 3,887,213 A
  • Filed: 02/28/1973
  • Issued: 06/03/1975
  • Est. Priority Date: 02/28/1973
  • Status: Expired due to Term
First Claim
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1. An inflatable vehicle occupant restraint system comprising:

  • a. a fluid source means operative to emit fluid under pressure;

    b. an inflatable confinement having a collapsed inoperative condition and an expanded operative condition, wherein said confinement has, (i) an inflatable framework disposed adjacent the wall of said confinement and communicating with said fluid source means such that, upon inflation of said framework, said confinement is expanded to the operative condition, (ii) one-way valve means disposed in the wall of said confinement and operable to open upon inflation of said framework, and expansion of said confinement to permit atmospheric air to flow into the interior of said confinement, said valve means including at least one patch having an excess of material and having the entire periphery thereof attached to the wall of said confinement, said patch being expandable upon expansion of said confinement to define in cooperation with the confinement wall a secondary chamber and to open said valve means, said patch having at least one outlet aperture formed therein with the wall of said confinement having at least one inlet aperture formed therein, said wall aperture being staggered from said patch aperture, said patch being collapsible against the confinement wall to prevent air flow through said staggered apertures to close said valve means upon contact of the confinement by the vehicle occupant.

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