发明名称 HEARING PROTECTOR AND METHOD OF MANUFACTURING THE SAME
摘要 Title: A hearing protector and method of manufacturing the same. . A hearing protector has a body made of a suitable material and matching the shape of the auricle or ear shell and/or the auditory canal of the user. The body is provided with a canal which, in the condition wherein the body is placed within an ear of the wearer, provides communication between the auditory canal and the free space. The body includes a second canal which, like the first canal, extends between the auditory-canal end and the free-space end of the body. An adjustable damping member is provided in or on the first canal for damping sound to suit the wearer's comfort in conditions in which the device is used.
申请公布号 CA1310277(C) 申请公布日期 1992.11.17
申请号 CA19890593921 申请日期 1989.03.16
申请人 SAFETEC S.A. 发明人 VAN MIERLO, CORNELIS M.
分类号 A61F11/08;H04R25/00 主分类号 A61F11/08
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