Acoustics – Sound-modifying means – Sound absorbing fence or screen
Patent
1993-09-22
1995-06-20
Dang, Khanh
Acoustics
Sound-modifying means
Sound absorbing fence or screen
181286, 181290, 52144, E04H 1700
Patent
active
054262674
ABSTRACT:
An elongated outdoor acoustic barrier for erection along a roadway or the periphery of an airport, for reflecting and absorbing sounds emanating from the roadway or airport, includes a plurality of substantially vertical columns arrayed at spaced intervals along the barriers' length, each having a recessed groove extending along its exposed above-ground lateral surface facing an adjacent spaced column; and a plurality of elongated flat rectangular panels arranged in a vertical edgewise array at least one panel in height, having opposite panel ends each securely embraced in a respective recessed grooves of a pair of adjacent columns, at least one of said panels being formed of extruded pre-stressed hollow core concrete plank.
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Barit Bruce T.
Landers Edward A.
Underhill George R.
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