Acoustically insulated apparatus

Details Acoustically insulated apparatus Acoustically insulated apparatus

1997-01-28

1999-10-12

Dang, Khanh

Acoustics

Sound-modifying means

Housing or enclosure

181202, 181290, G10K 1104

Patent

active

059658517

ABSTRACT:
An acoustically insulated apparatus is disclosed which includes a machine and an acoustical insulation system for the machine, wherein the machine generates noise having a peak sound frequency. The insulation system includes a two-part stratum having a porous sound absorbing media layer, and a sound reflecting barrier layer located between the sound absorbing layer and the machine, wherein the two-part stratum exhibits maximum sound absorption at the peak sound frequency.

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