초록 ▼

An acoustic panel having at least two compressible, flexible, acoustic foam damping layers separated by at least two rigid layers. In one preferred embodiment, a first rigid layer has a second flexible foam layer spray applied, with a further spray application of a rigid third layer, followed by a s

An acoustic panel having at least two compressible, flexible, acoustic foam damping layers separated by at least two rigid layers. In one preferred embodiment, a first rigid layer has a second flexible foam layer spray applied, with a further spray application of a rigid third layer, followed by a spray application of a flexible foam fourth layer, followed by a spray application of a rigid fifth layer, followed by a spray application of a sixth flexible foam layer, finally followed by a spray application of a rigid seventh layer. Sound transmission through this embodiment is especially well attenuated at high audio frequencies.

대표청구항 ▼

[ What is claimed is:] [1.] An acoustic panel for attenuating transmission of sound through the panel, comprising:a. at least two first rigid layers;b. at least two compressible flexible acoustic damping foam layers; andc. said rigid and foam layers being alternately placed so that a rigid layer is

[ What is claimed is:] [1.] An acoustic panel for attenuating transmission of sound through the panel, comprising:a. at least two first rigid layers;b. at least two compressible flexible acoustic damping foam layers; andc. said rigid and foam layers being alternately placed so that a rigid layer is between both foam layers and a foam layer is between both rigid layers.