Acoustics – Sound-modifying means – Housing or enclosure
Patent
1974-07-11
1976-06-15
Gonzales, John
Acoustics
Sound-modifying means
Housing or enclosure
52144, 181 33G, 181 50, 181 56, 181 33K, E04B 199
Patent
active
039630943
ABSTRACT:
An enclosure for isolating noise sources composed of four walls and a ceiling, in which some or all of the sides and top consist of a muffler barrier including one or more air paths transverse to the principal direction of sound transmission through the structure. Various types of component muffler barriers are illustrated which include double leaf structures lined with sound absorbing material where the two leaves are disposed in spaced apart relation and include oppositely disposed air intakes and air exhausts to provide the intervening air paths. In one embodiment, components comprise corrugated panels of sound absorbing material disposed in face-to-face relation to provide multiple air channels.
REFERENCES:
patent: 2272829 (1942-02-01), Bohnsack
patent: 2297609 (1942-09-01), Clark et al.
patent: 2328761 (1943-09-01), Wamnes et al.
patent: 2704504 (1955-03-01), Wilkening
patent: 3061056 (1962-10-01), Kodaras
patent: 3273297 (1966-09-01), Wehe
patent: 3295273 (1967-01-01), Wehe
Handbook of Noise Control Ed. by C. M. Harris McGraw-Hill Book Co., Inc. N.Y. 1957 pp. 21-25.
Noise Reduction Ed. by Leo L. Beranek, McGraw-Hill Book Co., Inc., N.Y. 1960 p. 153.
Egan, M. D. Concepts in Architectural Acoustics McGraw-Hill Book Co., Inc. N.Y. 1972, p. 65.
Donley, Miller & Nowikas, Inc.
Gonzales John
Pugh Martha G.
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