Acoustic fluid and earplug
OwnerMarc C. Ramseyinventor
Life of this patent
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Abstract
Systems and methods for occluding a duct and attenuating sound may be provided. In some embodiments, a device for attenuating sound passing through a duct or orifice may include a body sized and shaped to be inserted, at least partially, into a duct or orifice. The body may have an interior volume that contains a fluid suspension. In some embodiments, the fluid suspension may include a plurality of gas-filled spheres dispersed in an interstitial fluid. The gas-filled spheres may increase an acoustic attenuation of the fluid suspension relative to the interstitial fluid alone.
Claims14
A device for attenuating sound passing through a duct or orifice, the device comprising:
- a body sized and shaped to be inserted, at least partially, into a duct or orifice;
- and
- the body comprising an interior volume that contains a fluid suspension, wherein the fluid suspension comprises a plurality of gas-filled spheres dispersed in an interstitial fluid, the gas-filled spheres increasing an acoustic attenuation of the fluid suspension relative to the interstitial fluid alone;
- wherein the interstitial fluid is at least one of a liquid, emulsion, or solution, and the plurality of gas-filled spheres increases viscosity and compressibility of the fluid suspension relative to the interstitial fluid alone.
A method for attenuating sound passing through a duct or orifice, the method comprising:
- inserting, at least partially, into the duct or orifice a device, the device comprising an interior volume that contains a fluid suspension, wherein the fluid suspension comprises a plurality of gas-filled spheres dispersed in an interstitial fluid, the gas-filled spheres increasing an acoustic attenuation of the fluid suspension relative to the interstitial fluid alone;
- wherein the interstitial fluid is at least one of a liquid, emulsion, or solution, and the plurality of gas-filled spheres increases viscosity and compressibility of the fluid suspension relative to the interstitial fluid alone.
Dependencies are inferred from the claim text.