Stock material or miscellaneous articles – Structurally defined web or sheet – Honeycomb-like
Patent
1982-07-15
1984-08-14
Epstein, Henry F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Honeycomb-like
52806, 181292, 428138, B32B 312
Patent
active
044657250
ABSTRACT:
A noise suppression panel having a first cellular core positioned between and bonded to an imperforate facing sheet on one surface thereof and a first sheet of microporous material on the other surface. A second core is bonded between the other surface of the first sheet of microporous material and a perforated sheet. The other surface of the perforated sheet has a second sheet of microporous material bonded thereto. The cells of the two cores are preferably substantially aligned when maximum core-to-core bonding strength therebetween is required. A method of manufacturing is disclosed which includes flow-through resistance testing of the subassemblies.
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Epstein Henry F.
Gilliam Frank D.
Rohr Industries, Inc.
Schlesinger Patrick J.
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