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Structurally efficient inflatable protective device

  • US 5,533,755 A
  • Filed: 12/09/1994
  • Issued: 07/09/1996
  • Est. Priority Date: 06/28/1993
  • Status: Expired due to Term
First Claim
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1. An inflatable protective cushion comprising a sheet made of a woven material defined by four or fewer fold lines and a plurality of flap portions, each flap portion having a base edge corresponding to a fold line and at least two side edges each extending outwardly from the base edge and ultimately converging to meet each other, the flap portions being folded at the fold lines with each of the flap portions substantially converged to form an apex above the sheet and being joined at corresponding side edges to define an inflatable chamber, wherein the side edges are either substantially perpendicular or substantially parallel to the warp direction of the woven material.

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