Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Sound absorbing body, sound absorbing structural body, and method of manufacturing these bodies










Image Number 4 for United States Patent #7364014.

A sound absorbing body 40 has a molded body 44 including two unexpanded layers 41, 42 and an expanded layer 43 having a number of voids and held between these unexpanded layers 41, 42, a plurality of holes 41A of a depth that passes through the unexpanded layer 41 and does not reach the other unexpanded layer 42 are formed at any positions on the molded body 44, a cross-sectional area of the hole 41A is in the range from 0.785 to 314 mm.sup.2, and the pitch is 1 mm or larger. Laminating a plurality of materials is not required, and both the sound absorbing capability and sound insulating capability can be secured by integral molding, and further, only unpleasant sounds can selectively be absorbed.








 
 
  Recently Added Patents
Gathering user feedback in web applications
Printing control method and printer for printing on a label
System and method for providing advertising content using a group training system
Stretchable elastic laminate having increased CD elongation zones and method of production
Programmable computer mouse
Footwear
Systems, methods, and apparatus to determine physical location and routing within a field of low power beacons
  Randomly Featured Patents
User interface for a portion of a display screen
Inductor element having a high quality factor
Magnetic recording medium
Prevention of excessive toner accumulation in a developing apparatus
Undercut saw
Solenoid actuated control system
Latch keeper assembly
Process and apparatus for granulation of slag
Laser processing apparatus and laser processing method
Methods for using a biometric parameter in the identification of persons