发明名称 HELICAL BROADHEAD
摘要 A helical broadhead for an archery arrow includes a ferrule having a longitudinal axis with a tip end and an arrow end. Aligned forward and rearward slots are located in the ferrule generally parallel to the axis. At least two helical blade assemblies, each with an elongate cutting edge, spiral about the axis from a forward blade tang mounted in one forward slot to a rear tang mounted in a nonaligned, rearward slot. A chiseled tip having a sloping surface aligned with a helical blade assemblies may be attached to the tip end of the broadhead.
申请公布号 US2005272538(A1) 申请公布日期 2005.12.08
申请号 US20040862648 申请日期 2004.06.07
申请人 HAJEK MICHAEL L 发明人 HAJEK MICHAEL L.
分类号 F42B6/08;(IPC1-7):F42B6/08 主分类号 F42B6/08
代理机构 代理人
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