Noise suppression panel

Stock material or miscellaneous articles – Structurally defined web or sheet – Honeycomb-like

Patent

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Details

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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patent: 4269882 (1981-05-01), Carrillo et al.
patent: 4271219 (1981-06-01), Brown
patent: 4291079 (1981-09-01), Hom
patent: 4292356 (1981-09-01), Whitemore et al.
patent: 4294329 (1981-10-01), Rose et al.

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