Acoustical panel

Details Acoustical panel Acoustical panel

1978-05-22

1980-10-07

Hix, L. T.

Acoustics

Sound-modifying means

Sound absorbing panels

181210, 181286, 181289, 181295, 52144, G10K 1104, E04B 199

Patent

active

042262992

ABSTRACT:
An acoustical panel for reducing acoustic noise is disclosed. The panel is comprised of a corrugated sheet of material. The sheet of material has a generally parabolic-sinusoidal configuration forming a plurality of corrugations. The corrugations extend in a first direction and form a plurality of peaks and valleys. At least one side of the panel has a surface adapted to face a source of acoustical noise. The surface acoustically diffuses acoustic waves striking the surface and causes acoustic wave interference to occur. The acoustic panel has a transaxial stiffness-compliance such that the panel is permitted to pump when low frequency acoustic energy is applied to the panel for the purpose of dissipating acoustic energy.

REFERENCES:
patent: 1172710 (1916-02-01), Howe
patent: 1611483 (1926-12-01), Newsom
patent: 2057071 (1936-10-01), Stranahan
patent: 2316993 (1943-04-01), Sherwood
patent: 2811216 (1957-10-01), Harris
patent: 3049190 (1962-08-01), Coffmans
patent: 3294964 (1966-12-01), Schwartz
patent: 3411605 (1968-11-01), Coffman et al.
patent: 3498405 (1970-03-01), Charpentier
patent: 3819466 (1974-06-01), Winfield et al.
patent: 4094379 (1978-06-01), Steinberger
patent: 4114725 (1978-09-01), Croasdale
Singer Partitions, Inc., "Sound Stopper Curtains or Damp Sheet".

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