发明名称 Golf putting practice device
摘要 A compact, low profile golf putting practice apparatus includes a two-part flipper including a longitudinal flipping member and a coaxially mounted base section supporting the flipper member. A torsion spring pivots the flipper from its retracted position into an extended position whereby it propels a ball forwardly from a pocket area, and a powered retractor reversely pivots the flipper from its extended orientation into its retracted orientation. For safety, the two sections of the flipper are normally coupled together for movement as a unit by a resilient coupler which is capable of expanding temporarily when the flipper encounters an obstruction to its movement from the extended orientation to the retracted orientation.
申请公布号 US7094158(B1) 申请公布日期 2006.08.22
申请号 US20050126780 申请日期 2005.05.10
申请人 WHEAT CLEVELAND E 发明人 WHEAT CLEVELAND E.
分类号 A63B69/36 主分类号 A63B69/36
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