发明名称 HEARING PROTECTION DEVICE
摘要 An earpiece for a hearing protection device comprising an earbud (301), which is arranged such that it may be inserted into the ear canal of a user to block the ear canal of the user, wherein an acoustic pathway (303) is provided, which extends through the earpiece, and wherein an acoustic resistor (304) is provided that blocks the acoustic pathway, which acoustic resistor comprises an air permeable material.
申请公布号 EP3035897(A1) 申请公布日期 2016.06.29
申请号 EP20140753131 申请日期 2014.08.14
申请人 RACAL ACOUSTICS LIMITED 发明人 DAVIDSON, NORMAN;HUSSEIN, HABIB
分类号 A61F11/08 主分类号 A61F11/08
代理机构 代理人
主权项
地址