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Aircraft cabin interior noise treatment

  • US 6,260,660 B1
  • Filed: 12/18/1998
  • Issued: 07/17/2001
  • Est. Priority Date: 12/18/1998
  • Status: Expired due to Fees
First Claim
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1. A noise reducing blanket for use in an aircraft cabin for reducing acoustic noise transmission from an aircraft airframe to a cabin interior, the blanket comprising:

  • a mass barrier portion that includes a plurality of vinyl layers attached to one another at spaced apart locations so as to move substantially independently from one another between attachment locations;

    a foam portion, the foam portion having at least one cavity formed in it; and

    a vapor barrier disposed about the foam portion.

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