发明名称 Pivot joint for faceshield assembly
摘要 A faceshield that is securable to a protective helmet or headband having an indexable pivot joint which utilizes an interference fit between an O-ring and radially spaced lug sets. The O-ring is compressed when the crests of the two sets of lugs are radially aligned. This interference holds the faceshield in a desired indexed position.
申请公布号 US6264392(B1) 申请公布日期 2001.07.24
申请号 US19990382513 申请日期 1999.08.25
申请人 MINE SAFETY APPLIANCES COMPANY 发明人 WISE LAYTON A.;TOMLINSON JAMES R.
分类号 A42B3/22;A61F9/04;A61F9/06;(IPC1-7):A42B3/22 主分类号 A42B3/22
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