发明名称 Earplug
摘要 An earplug made of an elastic polymeric material, preferably a thermoplastic elastomeric material, and a method for manufacturing the same. The earplug is multi-material-injection moulded with a core or body part (1) and a sealing part (3), the latter being made of an essentially softer material than the core or body part (1). The material of the sealing part has a Shore A Durometer hardness of preferably between about 2 and about 6.
申请公布号 US5988313(A) 申请公布日期 1999.11.23
申请号 US19970989007 申请日期 1997.12.11
申请人 DALLOZ SAFETY AB 发明人 HAAKANSSON, JOERGEN
分类号 A61F11/10;B29C45/16;(IPC1-7):A61B7/02 主分类号 A61F11/10
代理机构 代理人
主权项
地址