Acoustically insulated apparatus

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...

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Bibliographic Details
Main Authors GREAVES; GERALD, HERREMAN; KEVIN M
Format Patent
LanguageEnglish
Published 12.10.1999
Edition6
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PERFORMING OPERATIONS
PHYSICS
SOUND-PRODUCING DEVICES
TRANSPORTING
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Summary: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.
Bibliography:Application Number: US19970789863