发明名称 Contracting basketball hoop
摘要 A basketball goal system is provided which helps improve the shooting skills of a use. The system includes a rim which is expandable and contractable in diameter. The rim has a pair of free ends which are caused to be moved relative to each other to change the rim diameter. Attached to each of the free ends is a device for causing such relative movement and thereby the expansion and contraction of the rim.
申请公布号 US7402116(B2) 申请公布日期 2008.07.22
申请号 US20050054922 申请日期 2005.02.09
申请人 ZUCCARINI DANIEL P;GORDON STEVEN J 发明人 ZUCCARINI DANIEL P.;GORDON STEVEN J.
分类号 A63B63/08;A63B69/00 主分类号 A63B63/08
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