Low non-linearity factor sound attenuating laminate

Details Low non-linearity factor sound attenuating laminate Low non-linearity factor sound attenuating laminate

1976-01-02

1978-09-05

Hunt, Brooks H.

Acoustics

Sound-modifying means

Sound absorbing panels

181210, 181222, 181287, G10K 1104

Patent

active

041110811

ABSTRACT:
A sound attenuating laminate exhibiting a relatively low change in acoustic resistance with respect to particle velocity is disclosed. The laminate includes a gas permeable mat of randomly arranged, small diameter filaments interleaved between two layers of resin impregnated, open weave web or cloth. A predetermined pattern of adhesive applied to the filamentous mat penetrates the mat to bond the laminate into an integral structure. The laminate can be easily fabricated to form sound attenuating panels having a variety of contours by curing the composite within a mold.

REFERENCES:
patent: 2668348 (1954-02-01), Hubbell
patent: 2910763 (1959-11-01), Lauterbach
patent: 3211253 (1965-10-01), Gonzalez
patent: 3216167 (1965-11-01), Roberts et al.
patent: 3274046 (1966-09-01), Shannon et al.
patent: 3622430 (1971-11-01), Jurisich
patent: 3712846 (1973-01-01), Daniels et al.

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