发明名称 Batting training device
摘要 A batting training device defined by a spherical member 15 having a through-opening 20 concentric with a central axis 22 and two elongated tether members 25 that pass through the through-opening 20. Each elongated tether 25 has a first end 34 secured to a handle 40 and a second end 36 secured to a securement member 45. The handles 40 are provided for being grasped by a coach or a training assistant (not shown). The securement member 45 is provided for securing the batting training device 10 to a stationary object such as a chain-link fence.
申请公布号 US6033323(A) 申请公布日期 2000.03.07
申请号 US19980124193 申请日期 1998.07.28
申请人 MCCOWN, ROGER 发明人 MCCOWN, ROGER
分类号 A63B69/00;(IPC1-7):A63B69/00 主分类号 A63B69/00
代理机构 代理人
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