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
Data storage device with surface ornamentation
Antenna for an automobile
Photoelectric conversion apparatus
Analysis device and an analysis apparatus using the analysis device
Method and apparatus for managing network traffic
Network fault detection
Three-term predictive adder and/or subtracter
  Randomly Featured Patents
Apparatus and methods for addressable communication using voice-grade radios
Appliance to be implanted, method of collapsing the appliance to be implanted and method of using the appliance to be implanted
Pocket case for mobile communications devices combined with carrying compartment for credit card sized items
Method and system for robust human ethnicity recognition using image feature-based probabilistic graphical models
Balanced sense amplifier circuits with adjustable transistor body bias
OFDM receiver, interference wave discernment method, window control apparatus and window control method
Solar heat conversion panel and method of assembly
Toner applicator for electrographic recording system
Coated metal product and precursor for forming same
Reverse pathname lookup by inode identifier