Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate
2011-03-29
2011-03-29
Enad, Elvin G (Department: 2832)
Acoustics
Sound-modifying means
Sound absorbing panels
C181S292000, C181S294000, C244S00100R
Reexamination Certificate
active
07913813
ABSTRACT:
An apparatus comprises a core having a first surface configured for attachment to a surface of a structure, a face sheet located over a second surface of the core, a number of cavities within an interior of the core, and a number of ports for the number of cavities. The number of ports provides communication between the number of cavities within the interior of the core and the exterior of the core. The number of cavities and the number of ports are configured to reduce noise traveling through the core.
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Enad Elvin G
Phillips Forrest M
Poole James M.
The Boeing Company
Yee & Associates P.C.
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