发明名称 Equipment for towless skiing on water surface
摘要 Equipment for towless skiing on water surface includes a pair of propulsion sticks having buoyant members at one end and handles at the other end. The buoyant members provide increased thrust against the hydrodynamic resistance of the water, and the shape of the buoyant members permits removal of the buoyant members from the water with little resistance. The equipment also includes a pair of skis comprised of foam material and provided with stabilizing shoulders on both sides of each ski for minimizing the effect of nose diving and rolling of the skis in the surf. The cross-sectional areas of the buoyant members and of the skis are such that maximum propulsion forces are provided. The skis are designed to endow the surf skier with a greater degree of freedom during surf skiing and to enable the skier to ski for longer distances on the water.
申请公布号 US4804345(A) 申请公布日期 1989.02.14
申请号 US19870025261 申请日期 1987.03.12
申请人 LEE, JONG S. 发明人 LEE, JONG S.
分类号 B63B35/83;(IPC1-7):A63C15/03 主分类号 B63B35/83
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