发明名称 |
Composite racquet with double tube head frame |
摘要 |
A sports racquet frame is built of a composite of laminations of fibrous material as impregnated by a thermosetting resin. The head section of the frame has an upper tube preferably disposed above the string bed plane and a lower tube preferably disposed below the string bed plane. A solid bridge of material integrally joins the upper tube to the lower tube. In a preferred embodiment the bridge is disposed radially exteriorly of the center line of the tubes, to maximize the length of string segments, which are strung to the bridge.
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申请公布号 |
US2005266940(A1) |
申请公布日期 |
2005.12.01 |
申请号 |
US20040854938 |
申请日期 |
2004.05.27 |
申请人 |
EF COMPOSITE TECHNOLOGIES, L.P. |
发明人 |
FILIPPINI RAFAEL G. |
分类号 |
A63B49/02;A63B49/10;A63B51/00;(IPC1-7):A63B49/10 |
主分类号 |
A63B49/02 |
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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