Insulating layer with integral grommets

  • US 5,824,974 A
  • Filed: 07/24/1997
  • Issued: 10/20/1998
  • Est. Priority Date: 07/26/1996
  • Status: Expired due to Fees
First Claim
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1. An acoustical barrier adapted to be mounted to a barrier wall, the acoustical barrier comprising:

  • a mass layer of a molded construction and sound dampening characteristics, the mass layer having an inner surface that is adapted to face the barrier wall and an outer surface adapted to face away from the barrier wall;

    a grommet integrally molded as a single piece with the mass layer, the grommet having a continuous wall with an upper portion of the wall integrally formed with the inner surface of the mass layer and a lower portion of the wall having a lower edge adapted to contact the barrier wall, an inner surface of the continuous wall defining an opening in the grommet; and

    an opening extending through the mass layer between the inner and outer surfaces thereof, the opening in the grommet being in communication with the opening in the mass layer.

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