Noise barrier

Details Noise barrier Noise barrier

1979-02-02

1980-10-21

Hix, L. T.

Acoustics

Sound-modifying means

Sound absorbing fence or screen

181284, 181295, 256 131, 256 24, 256 19, G10K 1100, B64F 126, E10F 1500

Patent

active

042288673

ABSTRACT:
A noise barrier wall having a transition area in the region of at least one unbounded edge and which employs controlled diffraction of sound to enhance the sound reducing properties thereacross. The transition area of the noise barrier is provided with either a row of absorptive shaped splitter panels, or a row of pickets, or other means of controlled transparency which provide acoustical shadowing equal to or greater than that of a solid wall for the frequency regions of interest.

REFERENCES:
patent: 119509 (1871-10-01), Darrach
patent: 2027493 (1936-01-01), Thilborger
patent: 2588147 (1952-03-01), Morris
patent: 3037726 (1962-06-01), Phillips
patent: 3049203 (1962-08-01), Bayer
patent: 3509964 (1970-05-01), Eckel
patent: 3578105 (1971-05-01), Griff
patent: 3783968 (1974-01-01), Derry
patent: 3988009 (1976-10-01), Mann
patent: 4015682 (1977-04-01), Keller
patent: 4069768 (1978-01-01), Matsumoto et al.

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