Patents Assigned to Pritex Limited
  • Apparatus for and method of attenuating acoustic energy
    Patent number: 6033756
    Abstract: A sound attenuating element is provided which comprises a closed cell foam layer (2) having a plurality of channels (4) formed therein. The element is, in use, placed adjacent a surface such that an air gap is formed between the foam layer and the surface. The channels couple to the air gap to form a plurality of Helmholtz resonators.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: March 7, 2000
    Assignee: Pritex Limited
    Inventor: Paul Handscomb