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Inflatable and semi-crushable safety bag for vehicle passenger

  • US 3,990,726 A
  • Filed: 04/23/1975
  • Issued: 11/09/1976
  • Est. Priority Date: 04/23/1975
  • Status: Expired due to Term
First Claim
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1. A safety device for the protection of a vehicle passenger in collision of the vehicle, the device comprising, an inflatable bag having a gas inlet port for receiving a pressurized gas for inflating said bag, said bag consisting of a plurality of polygonal pieces of a flexible sheet material, said polygonal pieces being sewed up together along every side thereof along seams so that said bag in the inflated state has the shape of a polyhedron, said seams being disposed along the respective edges of the polyhedron, at least a predetermined one of said seams having a weaker strength than others of said seams, said weaker strength being such that said predetermined one of said seams opens and defines a rip for discharging a portion of said pressurized gas from said bag when the gas pressure in said bag exceeds a predetermined pressure after said bag is inflated.

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