Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate
2006-06-06
2006-06-06
San Martin, Edgardo (Department: 2837)
Acoustics
Sound-modifying means
Sound absorbing panels
C181S294000, C181S210000, C181S204000, C296S039300
Reexamination Certificate
active
07055649
ABSTRACT:
Sound attenuating laminates, and methods of making the same, are provided. Heat is applied to a surface of a non-woven, fibrous layer of material to form a stratum of melted fibers having a density greater than that of the remainder of the fibrous layer. The density of the melted fibers is effective in attenuating noise traversing the fibrous layer of material. Upholstery material, such as carpeting, is attached to the surface of the heated fibrous layer. The fibrous layer and upholstery material are then subjected to compressive molding pressure to obtain a desired shape. The compressive molding pressure may further tune the sound attenuating properties of the fibrous layer by selectively changing the densities of portions of the fibrous layer.
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Griffin Bill
Khambete Surendra
Skidmore Fred
Tompson Graham
Collins & Aikman Products & Co.
Martin Edgardo San
Myers Bigel & Sibley & Sajovec
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