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Acoustical absorber having a body and at least one serrated washer

  • US 10,457,226 B2
  • Filed: 07/22/2016
  • Issued: 10/29/2019
  • Est. Priority Date: 07/22/2016
  • Status: Active Grant
First Claim
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1. An acoustical absorber, comprising:

  • a body made from a sound insulating material having a first material density D1; and

    a first serrated washer made from a composite material having a second material density D2 where D1<

    D2, wherein said first serrated washer is fixed directly to said body via an adhesive.

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