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
Navigation system and route search method
System and method for managing enterprise data
Original reading apparatus reading image from original
Electronic devices for defect detection
Systems and methods for determining a file set
Neuropsychiatric test reports
Methods and systems for dynamic division of path capacity
  Randomly Featured Patents
Lift system
Method for joining substrates and objects
Methods of manufacturing solid state image pickup devices
System for automatically indicating that battery should be replaced and method thereof
Transportation system of a floated-carrier type
Authenticated distributed detection and inference
Leather yarn product and method of manufacture
Power pole wiring assembly
Multiple copy and transparency detector with illumination control
Reactive dyes, their preparation and use