Hearing Protection Device Ear Seal With Acoustic Barrier
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United States of America Patent
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Issued Date -
May 13, 2010
app pub date -
Nov 12, 2008
filing date -
Nov 12, 2008
priority date (Note) -
Abandoned
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Abstract
A hearing protection device such as a headset or headphone having ear cups is provided with ear seals that incorporate an acoustic barrier for attenuating external noise levels in the interior of the ear cups. The ear seals completely encircle the wearer's ear and use cushioning material into which the acoustic barrier is embedded or otherwise associated. The acoustic barrier comprises a strip or flange of material that is denser than the cushioning material and provides enhanced cross sectional attenuation. The acoustic barrier blocks external noise to reduce the level of noise within the internal cell of the ear cup.
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