发明名称 Ball propelling machine
摘要 The invention relates to an assembly and method of spinning a seamed ball prior to being propelled from a ball propelling machine. The assembly can simulate balls propelled in sports such as baseball. The assembly includes at least one pair of opposed ball supports to firstly position a loaded ball in a predetermined alignment and to subsequently apply a predetermined amount of spin to the ball prior to being fired from the assembly.
申请公布号 US2007191143(A1) 申请公布日期 2007.08.16
申请号 US20050591138 申请日期 2005.03.11
申请人 KELLY HAYDN;BRODRICK COLIN 发明人 KELLY HAYDN;BRODRICK COLIN
分类号 A63B69/00;A63B24/00;A63B47/00;A63B65/12;A63B69/40 主分类号 A63B69/00
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