Sound attenuating structural honeycomb sandwich material

Details Sound attenuating structural honeycomb sandwich material Sound attenuating structural honeycomb sandwich material

1976-02-19

1977-01-04

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

52618, 181 33G, 428131, B32B 312

Patent

active

040014738

ABSTRACT:
Attenuating structural honeycomb sandwich panels with a cellular core having a portion of the adjacent cell walls removed forming an enlarged cell area positioned between and bonded to two facing sheets. The sheet adjacent the enlarged cell area is imperforate. The other face sheet remote from the enlarged cell area is perforate. Each enlarged cell area communicates to the atmosphere through a single perforation in the perforated sheet.

REFERENCES:
patent: 3070198 (1962-12-01), Haskell
patent: 3070480 (1962-12-01), Breiner
patent: 3104194 (1963-09-01), Zahorski
patent: 3407110 (1968-10-01), Axelson et al.
patent: 3639106 (1972-02-01), Yate
patent: 3673057 (1972-06-01), Fairbanks
patent: 3709161 (1973-01-01), Kauffman
patent: 3769767 (1973-11-01), Scott
patent: 3821999 (1974-07-01), Guess et al.

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