发明名称 Basketball free throw practice guide
摘要 The Basketball free throw practice guide includes a flag that extends vertically from an assembly that attaches onto a basketball rim. The assembly includes a flag base, support, and main base that inter-connect via a bolt or screw. The main base has a groove that is sealed off via the flag base to enclose the cross-section of the basketball rim therein. The assembly is weighted and self-ballasts when installed upon said basketball rim such that the flag will return to a vertical position upon impact by an object such as a basketball. The flag acts as a guide to teach proper basketball trajectory into the basketball rim.
申请公布号 US8197362(B1) 申请公布日期 2012.06.12
申请号 US20100886615 申请日期 2010.09.21
申请人 JOHNSON JOE 发明人 JOHNSON JOE
分类号 A63B69/00 主分类号 A63B69/00
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