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
Remote management of networked systems using secure modular platform
Note tab
Cell transport system comprising a homogeneous mixture of agarose and agarase
Diazeniumdiolated phosphorylcholine polymers for nitric oxide release
Specimen preparation device, and control method in specimen preparation device
Method and structure of forming backside through silicon via connections
Efficient file system metadata scanning using scoped snapshots
  Randomly Featured Patents
Table saw with mechanical fuse
Queued community repeater communications system
Hermetic compressor
MOS register for selecting among various data inputs
Electromagnetic relay
Line generator
Simple peering in a transport network employing novel edge devices
Sealed capsule for the preparation of a beverage, in particular espresso coffee
Oscillation maintenance circuit for half duplex transponder