发明名称 |
High sound attenuating hearing protection device |
摘要 |
A hearing protection device insertable into an earcanal is provided, the device generally including a stem portion, a sound attenuating portion affixed to and extending at least partially over the stem portion, and a volume of space disposed between and delimited by the sound attenuating portion and the stem portion, where at least a part of the sound attenuating portion is collapsible into the volume of space during insertion of the hearing protection device into the earcanal.
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申请公布号 |
US2005274568(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
US20040866212 |
申请日期 |
2004.06.11 |
申请人 |
FALCO ROBERT N;KNAUER RICHARD;SEVILLE ALAN R |
发明人 |
FALCO ROBERT N.;KNAUER RICHARD;SEVILLE ALAN R. |
分类号 |
A61F11/08;(IPC1-7):H04R25/02;A61B7/02 |
主分类号 |
A61F11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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