Acoustics – Sound-modifying means – Sound absorbing fence or screen
Patent
1983-05-13
1985-04-30
Hix, L. T.
Acoustics
Sound-modifying means
Sound absorbing fence or screen
B64F 126
Patent
active
045138400
ABSTRACT:
A sound suppression system for use with air breathing machinery, (10, 12) includes a solid barrier (18) supported (28) above an earthen dike (26). Sound (16) from the machinery (10, 12) is reflected downward (116a) and absorbed. A slot (20), provided between the barrier (18) and the dike (26) allows a flow of fresh air (24) to pass under the barrier (18) to reach the machinery (10, 12). A swale (32) is also included to reflect sound upward (134) for dissipation in the upper atmosphere.
REFERENCES:
patent: 4146112 (1979-03-01), Usry
patent: 4274506 (1981-06-01), Blomgren et al.
Egan, Concepts in Architectural Acoustics, pp. 91 to 94.
Brown Brian W.
Combustion Engineering Inc.
Hix L. T,.
Snyder Troxell K.
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