发明名称 Water resistant acoustic port in ear-mounted hearing device
摘要 Water resistant acoustic ports and electronic hearing protection devices incorporating such ports are described. More specifically, water proof acoustic ports that provide water protection for an internal sealed chamber by providing acoustically transparent inlets that are capable of withstanding external water pressure at given depth due to their volume relation to that of the internal chamber, as well as hearing protection devices incorporating such ports, are described.
申请公布号 AU2015298295(B2) 申请公布日期 2017.03.02
申请号 AU20150298295 申请日期 2015.07.14
申请人 3M Innovative Properties Company 发明人 Henry, Paul D.;Lutgring, David M.;Hotvet, David A.
分类号 H04R25/00 主分类号 H04R25/00
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