发明名称 Method and apparatus for locating the strongest point on a golf club shaft
摘要 A golf shaft spine locating apparatus is provided having a frame. A pair of vertical supports for the shaft are mounted to both ends of the frame. The shaft is placed on the supports and is rotated on the supports. A weight is applied to the shaft and exerts a downward force on the middle of the shaft between the supports while permitting rotary motion of the shaft on the supports. As the downward force is applied on the shaft and the shaft is rotated on the supports, the spine of the shaft is located.
申请公布号 US6250168(B1) 申请公布日期 2001.06.26
申请号 US19990275741 申请日期 1999.03.24
申请人 D'AGUANNO FRANK 发明人 D'AGUANNO FRANK
分类号 A63B59/00;G01M5/00;(IPC1-7):G01M19/00 主分类号 A63B59/00
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