发明名称 Textured bottom skin for bodyboards and method
摘要 A textured bottom surface is provided for bodyboards of the type which have a semi-rigid foam core and which are used to ride on waves such as ocean surf with the rider in a prone or procumbent position. The improved bottom surface comprises a plurality of discreet depressions formed in the bottom of the bodyboard, numbering at least 50-depressions over the entire bottom surface, and preferably numbering more than 1500 such depressions. The depressions are believed to generate bubbles in the air-water mixture passing beneath the board which help reduce the shear forces in the water. The effect is called air lubrication and results in reduced drag and greater speed, as well as a lighter "feel" for the board on water. A bodyboard incorporating the improved bottom surface, and a bottom skin for bodyboards which includes the texturing depressions, are disclosed. A method of forming the textured bottom skin is also disclosed.
申请公布号 US5238434(A) 申请公布日期 1993.08.24
申请号 US19910670022 申请日期 1991.03.15
申请人 KRANSCO 发明人 MORAN, STEVEN M.
分类号 B29C59/02;B63B1/38 主分类号 B29C59/02
代理机构 代理人
主权项
地址