Resources Contact Us Home
Sound absorbing structure

Image Number 3 for United States Patent #7743880.

A sound absorbing structure includes a housing having a front face, and a side face which is provided perpendicularly around at least a part of an edge portion of the front face; a gas adsorption material for physically adsorbing gas in an interior space delimited by the front face and the side face of the housing, which gas adsorption material is placed in the interior space; sealing element for sealing the gas adsorption material from outside thereof; and an acoustic connection section for functioning as an acoustic mass so as to acoustically connect an exterior space and the interior space of the housing, which acoustic connection section is provided in at least one of the front face and the side face.

  Recently Added Patents
Method and apparatus for performing real time anomaly detection
Methods and systems for delivering customized advertisements
Dual functional medium shredding machine structure
Formulations, their use as or for producing dishwashing detergents and their production
Thiocyanato or isothiocyanato substituted naphthalene diimide and rylene diimide compounds and their use as n-type semiconductors
Electrode composition with enhanced performance characteristics
5-HT.sub.3 receptor modulators, methods of making, and use thereof
  Randomly Featured Patents
N-(.alpha.,.alpha.-Dialkylbenzyl)-phenylacetamide compounds and herbicidal compositions containing said compounds
Hotmelt adhesive with good adhesion to polyolefins
Apparatus and method for speech recognition using probability and mixed distributions
Recombinant murine leukemia virus reverse transcriptases, the genes encoding and the method for expressing it
Monostatic radar beam optimization
Magazine rack
Process for the production of a firmly adhering, moisture-proof coating of plastic on a substrate
Multi-chip module having printed wiring board comprising circuit pattern for IC chip
Vibration attenuating apparatus and method for use on the damper spring of clutch disc
Mobile educational toy