发明名称 Water ski constructed with interlocking flanged shells
摘要 A water ski formed of molded upper and lower shells made of sheet molding compound which have mating and overlapping flanges around the entire perimeter of the shells which are bonded together to form a buoyancy chamber. In one embodiment, the chamber is filled with polymerized foam and in another embodiment longitudinally extending ribs are formed to maintain the upper and lower surfaces of the shells in spaced relationship to each other.
申请公布号 US4314384(A) 申请公布日期 1982.02.09
申请号 US19800176612 申请日期 1980.08.08
申请人 THE BUDD COMPANY 发明人 WEINHAUS, HAROLD R.
分类号 B63B35/79;A63C5/00;B63B35/81;(IPC1-7):A63C5/00 主分类号 B63B35/79
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