Acoustics – Sound-modifying means – Sound absorbing fence or screen
Patent
1978-09-26
1981-06-23
Hix, L. T.
Acoustics
Sound-modifying means
Sound absorbing fence or screen
181286, 181287, 181293, E04B 182, E04H 1700
Patent
active
042745063
ABSTRACT:
The present invention relates to a noise shield including a massive shield wall and an attachable absorbent unit on the shield wall. Thus the noise shield can be used with the absorbent unit along the parts of the road where you do not want reflections of the noise which you want to reduce and without absorbent unit along the parts of the road where you just want a reduction of the noise.
The noise shield is constructed of posts, which are anchored in the ground. Between these posts are mounted support beams. The shield wall consists of shield modules. Each shield module consists of a plank panel, which is mounted on a frame, the plank panel functioning to reduce noise. Furthermore, into the cavity of each shield module; an absorbent unit can be inserted therein, which includes a frame and a panel. A noise shield can be constructed along a part of a road by anchoring the posts in the ground, mounting the support beams thereon and placing the prefabricated shield modules between these posts and support beams. Then the noise shield can be completed with absorbent units.
REFERENCES:
patent: 3276539 (1966-10-01), Dear et al.
patent: 3445975 (1969-05-01), Nelsson
patent: 3630310 (1971-12-01), Federer
patent: 3656576 (1972-04-01), Gubela
patent: 4114725 (1978-09-01), Croasdale
Blomgren Rolf B. J. R.
Edlund Nils H.
Fuller Benjamin R.
Hix L. T,.
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