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Evacuation slide with beam structure comprising four-point cross section

  • US 10,118,708 B2
  • Filed: 10/19/2015
  • Issued: 11/06/2018
  • Est. Priority Date: 10/19/2015
  • Status: Active Grant
First Claim
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1. An inflatable slide comprising:

  • an elongated member comprising a sliding surface; and

    a support structure supporting the elongated member, the support structure comprising a first rail beam and a second rail beam bordering opposites sides of the elongated member,wherein the first rail beam and the second rail beam are inflatable,wherein the first rail beam and the second rail beam each have a four-point cross section,wherein the four-point cross section is made from inflatable chambers and is defined by;

    a longitudinal pair of opposite arcuate sections comprising a first arcuate section having a first peak point and a second arcuate section having a second peak point, wherein a first large transverse dimension extends between the first peak point the second peak point, anda transverse pair of opposite arcuate sections comprising a third arcuate section having a third peak point and a fourth arcuate section having a fourth peak point, wherein a second large transverse dimension extends between the third peak point and the fourth peak point,wherein the first large transverse dimension intersects the second large transverse dimension, andwherein the four-point cross section is further defined by a first indent formed between the first arcuate section and the fourth arcuate section, a second indent formed between the second arcuate section and the third arcuate section, a third indent formed between the third arcuate section and the first arcuate section, and a fourth indent formed between the second arcuate section and the fourth arcuate section, wherein a first small transverse dimension extends between the first indent and the second indent and a second small transverse dimension extends between the third indent and the fourth indent.

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