发明名称 |
Acoustic absorber and method for absorbing sound |
摘要 |
An acoustic absorber and a method for absorbing sound utilize a substrate having a plurality of openings therethrough. An organic polymer coating covers the substrate and partially fills the openings in the substrate to form an acoustic absorber having a porosity not greater than 60 CFM/ft2.
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申请公布号 |
US4152474(A) |
申请公布日期 |
1979.05.01 |
申请号 |
US19780898947 |
申请日期 |
1978.04.21 |
申请人 |
CHEMICAL FABRICS CORP |
发明人 |
COOK, JOHN R |
分类号 |
E04B1/84;G10K11/16;(IPC1-7):E04B1/74;B32B3/10;E04B1/99 |
主分类号 |
E04B1/84 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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