发明名称 Hearing protective device.
摘要 An acoustical hearing device is presented, comprising a foam and at least one component which is mechanically bonded to the foam. The mechanical bonding of the component arises during manufacture, wherein the component is placed into a mold cavity as an insert and a foam is formed within the mold so as to allow controlled penetration of the component during foaming. In an exemplary embodiment, the at least one component comprises a stem having a tip at one end, wherein the tip includes at least one opening at least partially extending therethrough. The mechanical bond resulting when the foam extends through the at least one opening.
申请公布号 ZA200006414(B) 申请公布日期 2001.08.29
申请号 ZA20000006414 申请日期 2000.11.08
申请人 CABOT SAFETY INTERMEDIATE CORPORATION 发明人 ROBERT N. FALCO
分类号 A61F11/08;A61F11/10;B29C44/12 主分类号 A61F11/08
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