Cfd Research Corporation

Xiangguang Gary Tan

Andrzej Przekwas

Vincent Johannes Harrand

David Keith Sedberry, Jr

Phillip Edward Whitley

A passive non-linear earplug can include: a tapered body having a channel extending from a wider distal end to a narrower proximal end, the tapered body having shape memory and size adapted for being received into an ear canal of a human subject; and a disk attached to the wider distal end of the tapered body, the disk having one or more holes aligned with the channel. A structural tube can be located in the channel. A handle can be attached to the tapered body and/or disk. An annular member can be coupled to the disk opposite of the tapered body, the annular member having an aperture that at least partially aligns with the channel. A tube member can be coupled to the disk opposite of the tapered body. The earplug can attenuate loud sounds while allowing normal sounds to be heard, which provides for the non-linearity.

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Alexandria, VA, United States of America

Xiangguang Gary Tan