Sound absorbing structures
OwnerBruce Woodward, Daniel W. Martin +1inventors
InventorsBruce Woodward, Daniel W. Martin, William Miller
Life of this patent
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Abstract
The instant invention involves a sound absorbing structure which is formed from at least two adjacent panels which are assembled so as to provide a narrow slot of between about 1/16 and 3/4 inch between the panels. The slot opens into a resonance cavity formed by the panels, their support strips, and a bottom member. The resulting sound absorbing structure provides substantial sound absorption at frequencies of less than about 1000 Hz.
Claims18
A sound absorbing structure comprising a plurality of adjacent, elongated, substantially solid panels each attached to a support strip for supporting the panels in lengthwise and parallel but separate relationship wherein the distance between adjacent panel edges of adjacent panels defines a slot which is between about 1/16 and about 3/4 inch and wherein said support strips are attached to a substantially solid bottom member such that the adjacent panels together with the support strips and the bottom member form first acoustical resonator cavities in communication with the slots which provide substantial sound absorption at a frequency of less than about 1000 Hz, and second closed cavities between adjacent first cavities for reducing acoustical coupling between adjacent first cavities.
A sound absorbing structure comprising:
- a plurality of adjacent, substantially solid panels in generally side-by-side, spaced apart relationship wherein the space between adjacent edges of adjacent panels defines a slot having a width of about 1/16 to 3/4 inch;
- a substantially solid bottom member spaced from the plurality of solid panels;
- support means located in the space between the panels and the solid bottom member, interconnecting the panels to the solid bottom member, the support means being located between adjacent slots defined by adjacent panels, the support means cooperating with the panels to define first acoustical resonator cavities in air flow communication with the slots, said first acoustical resonator cavities having widths substantially greater than said slots and the support means cooperating with the bottom member to define closed second cavities between adjacent first cavities for reducing acoustical coupling between adjacent first cavities.
Dependencies are inferred from the claim text.