Noise barrier wall

Details Noise barrier wall Noise barrier wall

1998-02-19

2000-02-01

Dang, Khanh

Acoustics

Sound-modifying means

Sound absorbing fence or screen

G10K 1100

Patent

active

060191899

ABSTRACT:
A noise barrier wall is provided which has a main wall body standing generally vertically and provided atop thereof with a first sound absorbing unit, and on a side thereof opposite to a noise source with an overhang extending away from the noise source and of which the free end is directed upward and provided at an end thereof with a second sound absorbing unit. Each of the first and second sound absorbing units comprises two branch walls extending obliquely upward to the left and right, respectively. Each of the two branch walls is provided with an additional branch wall. These additional branch walls extend obliquely upward towards each other. An opening is defined between free ends of the additional branch walls.

REFERENCES:
patent: 4308933 (1982-01-01), Hahn et al.
patent: 4436179 (1984-03-01), Yamamoto et al.
patent: 5678364 (1997-10-01), Shima et al.
patent: 5739482 (1998-04-01), Shima et al.

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