发明名称 NON-ROLL FOAM EARTIP
摘要 Embodiments disclose a non-roll foam EarTip that may provide for fingertip press-in insertion, improved comfort, simplicity of use, flatter attenuation and/or improved hygienic properties, by way of non-exclusive example. A hollow foam body typically encompasses a shorter stem of more rigid material, and in some embodiments the foam body has a tighter skin on the inner and outer surfaces. In some embodiment, the EarTip is an earplug formed of polyurethane foam with a dense skin on the inner and outer surfaces of the hollow body, and having a plurality of splines in the cavity.
申请公布号 WO2010141741(A2) 申请公布日期 2010.12.09
申请号 WO2010US37284 申请日期 2010.06.03
申请人 SPERIAN HEARING PROTECTION, LLC.;TIEMENS, JIM 发明人 TIEMENS, JIM
分类号 A61F11/06;A61F11/14;C08J9/22;C08L75/04 主分类号 A61F11/06
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