Acoustics – Sound-modifying means – Sound absorbing panels
Patent
1994-08-24
1996-04-02
Dang, Khanh
Acoustics
Sound-modifying means
Sound absorbing panels
181294, E04B 182
Patent
active
055042821
ABSTRACT:
The present invention relates to sound transmission barrier and/or sound absorption media systems that are especially useful in motor vehicles and boats. These systems are based on the concept of replacing the traditional intermediate high-mass layer ("massback") with two or more high-mass layers that are separated by a strong yet light material, such as polyurethane foam.
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Pizzirusso Joseph F.
Rucker John R.
Dang Khanh
Foamex L.P.
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