Sound absorbing structure
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United States of America Patent
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Jun 27, 1989
Issued Date -
N/A
app pub date -
Jul 13, 1988
filing date -
Jun 16, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sound absorbing structure is formed of adjacent panels which provide narrow slots opening into first resonance cavities formed behind the panels. Support strips provide secondary cavities between adjacent first cavities to reduce acoustical coupling between adjacent first cavities. The resulting sound absorbing structure provides substantial sound absorption at frequencies of less than about 1,000 Hz.
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