Linear acoustic liner

Details Linear acoustic liner Linear acoustic liner

2011-04-12

2011-04-12

San Martin, Edgardo (Department: 2832)

Acoustics

Sound-modifying means

Sound absorbing panels

C181S288000, C181S214000, C244S198000

Reexamination Certificate

active

07921966

ABSTRACT:
A linear acoustic liner for an aircraft includes a cellular core having a first surface and an opposed second surface. A substantially imperforate back skin covers the first surface, and a perforate face skin covers the second surface of the core. The perforate face skin includes an outer face skin layer having a first plurality of spaced openings, an inner face skin layer having a second plurality of spaced openings, and a porous layer disposed between the outer face skin layer and the inner face skin layer. Each of the first plurality of spaced openings are substantially aligned with one of the second plurality of spaced openings.

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Official Action (JP Appln. No. 2008-207710; filed Aug. 12, 2008) mailed Oct. 29, 2010, pp. 1-4.
English translation of Official Action (JP Appln. No. 2008-207710; filed Aug. 12, 2008) mailed Oct. 29, 2010, pp. 1-5.

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