04433021 is referenced by 33 patents and cites 7 patents.

A layer of non-metallic open weave fabric sandwiched between the perforate sheet and an outer thin sheet of microporous fabric of a broad band noise attenuation panel comprising a cellular core adhesively bonded between a pair of metal facing sheets, one perforate and the other imperforate in order to provide enhanced durability in a severe environment. The microporous fabric is constructed from a metal different from at least the perforated sheet and is adhered to the perforated sheet. A method of manufacture of such panel is disclosed.

Title
Sound attenuation sandwich panel including barrier material for corrosion control
Application Number
6/421126
Publication Number
4433021
Application Date
September 22, 1982
Publication Date
February 21, 1984
Inventor
Frank J Riel
San Diego
CA, US
Agent
Frank D Gilliam
Patrick J Schlesinger
Assignee
Rohr
CA, US
IPC
B32B 3/12
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