Resources Contact Us Home
Apparatus for and method of attenuating acoustic energy

Image Number 3 for United States Patent #6033756.

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.

  Recently Added Patents
Integrated advance copper fuse combined with ESD/over-voltage/reverse polarity protection
Image stabilization
Vehicle control system
Electronic device and recording medium
Protective vest
Intermediate film for laminated glasses, and laminated glass
Fast base station switching method and system, and hierarchical zone-based fast handoff approach
  Randomly Featured Patents
Computer icon for image viewing and image collection functions of a microscope system on a portion of a display panel or microscope display
Heat exchanger base for a portable laser system
Lid for a container for food product
Golf club head
Method of producing antitumor effect using quinazolin-4-one derivatives
Use of adaptive resonance theory (ART) neural networks to compute bottleneck link speed in heterogeneous networking environments
Growth differentiation factor-8
Moveable cargo support panel for use in a vehicle
Film for composite security disks with self-adhesiveness
Method and device for starting an internal combustion engine having direct injection