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Multi-layer sound attenuating acoustic panel

a sound attenuating and acoustic panel technology, applied in the direction of walls, constructions, building components, etc., can solve the problems of inability to completely negate the effect of material layer direct adhesion, design does not allow for unique materials that could add acoustic performance, and achieves significant structural rigidity and high sound attenuation with structural strength

Active Publication Date: 2014-09-23
WELLS FARGO BANK NAT ASSOC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a way to make a layered panel that can absorb high levels of sound while remaining strong. This is done by using specific materials with certain properties in a certain way. The panel itself does not require expensive mechanical fasteners, but instead uses common adhesives to minimize the coupling of the layers. The final panel has the desired sound-attenuating properties and is structurally rigid.

Problems solved by technology

Both of these designs while effective in certain applications also suffer from inherent weaknesses.
While the use of a viscoelastic adhesive can reduce this effect and increase sound absorption, it is impossible to completely negate the effect material layers are directly adhered.
In addition, the design does not allow for unique materials that could add acoustic performance.

Method used

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Embodiment Construction

[0031]Certain properties will affect the ability of a material or assembly to attenuate sound and vibration. Such properties may include density, porosity, rigidity and others. In order to attenuate sound and achieve high levels of transmission loss materials with appropriate properties must be carefully chosen. For maximum performance the materials must be assembled in a manner that promotes attenuation.

[0032]The invention accomplishes both of these criteria through the unique use of both sound attenuating materials and a unique configuration. The foundation of the invention lies in the use of rigid, damped facing layers around a tunable core configured for both sound reverberation absorption and transmission loss. The complete assembly is characterized also as having minimal rigid coupling between the layers.

[0033]The invention can be understood through the review and several preferred embodiments. It is understood that these embodiments are not exhaustive of how the invention cou...

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Abstract

An acoustic panel having rigid, damped faces and an interior layer assembly. The assembly can constructed with minimal layer coupling and common construction adhesives and without the use of mechanical fasteners. The panel is capable of providing significant noise attenuation while maintaining sufficient structural rigidity such that the panel is suitable for a broad range of construction applications.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No, 61 / 276,057 filed on Sep. 8, 2009 by the same inventors, entitled “Acoustic panel”.BACKGROUND[0002]As noise pollution becomes an increasing problem, the need for effective sound attenuating panels also grows. Additionally, the demand for sound attenuating panels that are lighter in weight, economical, and made from environmentally responsible materials is also increasing. In the past materials such as lead have been used to achieve high noise attenuation. However, these materials have significant environmental and manufacturing drawbacks and designs using such materials can often be complicated in their construction. The disclosed invention provides a unique design that meets the performance demands of noise attenuating panels without the use of problematic materials and complicated construction.BACKGROUND OF THE INVENTION[0003]A variety of designs have been proposed i...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): E04B1/84
CPCE04B1/86E04B2001/8452
Inventor SHORE, CRAIGSCHEIDECKER, RALPHANDERSON, NATHANSCHEIDECKER, ROBERTCARROLL, CURTIS
Owner WELLS FARGO BANK NAT ASSOC
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