发明名称 Weed resistant boat propeller
摘要 A weed resistant boat propeller is disclosed. The propeller includes a generally circular hub that is adapted for mounting to and being rotatably driven by a boat motor. There are a plurality of blades mounted to a circumferential surface of the hub and extending therefrom in a spiral configuration. Each blade includes a curved leading edge that has an arc dy/dx<1 for the entire length of the leading edge.
申请公布号 US5249993(A) 申请公布日期 1993.10.05
申请号 US19910733084 申请日期 1991.07.19
申请人 MARTIN, ROLAND V. R. 发明人 MARTIN, ROLAND V. R.
分类号 B63H1/26;(IPC1-7):B63H1/28 主分类号 B63H1/26
代理机构 代理人
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