Method and apparatus for controlling reverberation of sound in e

Details Method and apparatus for controlling reverberation of sound in e Method and apparatus for controlling reverberation of sound in e

1984-05-29

1986-08-26

Page, Thurman K.

Static structures (e.g., buildings)

With exposed configuration having acoustical function

52145, 523098, 52741, 181284, 181288, 181289, 181290, 181291, 181292, 181293, 181294, 181296, 4283124, B24B 500, B32B 326, E04B 182

Patent

active

046074660

ABSTRACT:
The present invention is an acoustic panel having a porous layer and a generally rigid layer affixed to each other. The generally rigid layer includes at least one passageway opening on one side of the rigid layer and extending through the rigid layer to the porous layer. The porous layer is a fibrous material. The rigid layer is a concrete-type material, such as vermiculite-cement plaster. This acoustic panel further comprises a generally rigid planar surface positioned adjacent to the porous layer. This generally rigid planar surface can comprise an insulating layer affixed to the other side of the porous layer and a structural layer fastened to the insulating layer. The insulating layer is a polyurethane foam board. The structural layer is a particle board.

REFERENCES:
patent: 3021915 (1962-02-01), Kemp
patent: 3022607 (1962-02-01), Toulmin, Jr.
patent: 4084367 (1978-04-01), Saylor et al.

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