发明名称 |
Apparatus for, and method of, positioning movable elements on a T-ball mechanism for propulsion |
摘要 |
A propulsion member (e.g. a bat) has an external switch and an internally disposed transistor which transmits signals when the switch is manually closed. A receiver in a tee mechanism receives the signals and causes a tee in the mechanism to move upwardly from a rest position to an operative position. As the tee moves upwardly to the operative position, an element (e.g. a wiffle ball) moves on a ramp to a supportive position at the top of the tee. When the tee is in the operative position, a player holding the propulsion member swings the member against the ball. This is helpful to young children (e.g. eight (8) years old or younger) in learning how to hit a baseball.
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申请公布号 |
US6695723(B2) |
申请公布日期 |
2004.02.24 |
申请号 |
US20020097047 |
申请日期 |
2002.03.12 |
申请人 |
SPORT FUN, INC. |
发明人 |
LEAL JOSE E.;BARLETTA JOHN F. |
分类号 |
A63B47/00;A63B59/06;A63B69/00;(IPC1-7):A63B71/00 |
主分类号 |
A63B47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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