Soundproof wall

Details Soundproof wall Soundproof wall

1996-09-24

1998-04-14

Dang, Khanh

Acoustics

Sound-modifying means

Sound absorbing fence or screen

G10K 1100

Patent

active

057394822

ABSTRACT:
A soundproof wall has a main wall, a first branch wall extending in a substantially vertical direction from a top of the main wall, a second branch wall extending obliquely from the main wall in a direction away from a noise source, and a third branch wall extending obliquely from an intermediate portion of the second branch wall in a direction toward the noise source. Another embodiment of the invention includes a horizontal branch extending from the main wall in a direction away from the noise source and supporting the second branch wall.

REFERENCES:
patent: 4158401 (1979-06-01), Matsumoto et al.
patent: 4308933 (1982-01-01), Hahn et al.
patent: 4436179 (1984-03-01), Yamamoto et al.
Journal of Sound and Vibration (1994) 177(3), pp. 289-305, "Acoustic Performance of New Designs of Traffic Noise Barriers: Full Scale Tests," by G.R. Watts et al.
Journal of Sound and Vibration (1994) 176(4), pp. 459-473, "The Performance of Multiple Noise Barriers," by D.H. Crombie and D.C. Hothersall.
Journal of Sound and Vibration (1991) 146(2), pp. 303-322, "Efficiency of Single Noise Barriers," by D.C. Hothersall, S.N. Chandler-Wilde and M.N. Hajmirzae.
Applied Acoustics 31 (1990), pp. 77-100, "Mathematical Modeling of Absorbent Highway Noise Barriers," by Sabih I. Hayek.
Applied Acoustics 44 (1995) pp. 353-367, "Multiple-Edge Noise Barriers," by D.H. Crombie, D.C. Hothersall & S.N. Chandler-Wilde.

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