发明名称 |
Apparatus for teaching batters, and method |
摘要 |
The disclosure presents an innovative apparatus for use in instructing hitters how to focus one's field of vision into a preselected angular field; the invention is also a method of providing this instruction. The apparatus includes a helmet and a shroud configured to engage the helmet. An elongate opening is formed on the shroud to restrict a wearer's field of vision to a preselected angle. |
申请公布号 |
US8296869(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US20070810312 |
申请日期 |
2007.06.06 |
申请人 |
KELLOGG MICHAEL;HEAD ON THE BALL, LLC |
发明人 |
KELLOGG MICHAEL |
分类号 |
A42B1/08;A42B1/00;A42B1/06;A61F9/00;A63B69/00;A63B71/10 |
主分类号 |
A42B1/08 |
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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