发明名称 SAFETY HELMET ASSEMBLY
摘要 A safety helmet having a rigid outer shell, a shock absorbing layer inside of the outer shell, and a shield layer fabricated from a strong and lightweight material positioned between the outer shell and the shock absorbing layer. The shield layer is preferably free to move relative to the outer shell in a direction toward the shock absorbing layer.
申请公布号 CA2299593(A1) 申请公布日期 2000.08.26
申请号 CA20002299593 申请日期 2000.02.25
申请人 MINE SAFETY APPLIANCES COMPANY 发明人 ERTH, RICHARD A.;WISE, LAYTON A.
分类号 A42B3/06;A42B3/10;(IPC1-7):A42B3/10 主分类号 A42B3/06
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