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1.
公开(公告)号:US6068079A
公开(公告)日:2000-05-30
申请号:US909429
申请日:1997-08-11
申请人: Pascal Hamery , Armand Dancer , Georges Evrard
发明人: Pascal Hamery , Armand Dancer , Georges Evrard
CPC分类号: A61F11/08 , A61F2011/085
摘要: Acoustic valve capable of selective and non-linear filtering of sound and placeable in a perforated ear plug. The acoustic valve consists of a tube enclosing two rigid disks axially spaced opposite each other, each of the disks containing at least one perforation. The total perforated surface of at least one disk is between 0.03 and 0.5 mm.sup.2.
摘要翻译: 能够选择性和非线性地过滤声音并放置在穿孔耳塞中的声阀。 声阀由包围两个彼此轴向间隔开的刚性盘的管组成,每个盘包含至少一个穿孔。 至少一个盘的整个有孔表面在0.03和0.5平方毫米之间。