发明名称 |
Composite baseball bat |
摘要 |
A composite molded baseball bat is provided using a tubular, high yield strength aluminum core surrounded by a foam plastic body having a density of from 30-50 pounds per cubic foot and an integral outer skin. The tubular aluminum core has an outside diameter of from three-quarters to 1 inch and a wall thickness of from 0.062 to 0.125 inch.
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申请公布号 |
US4032143(A) |
申请公布日期 |
1977.06.28 |
申请号 |
US19750617439 |
申请日期 |
1975.09.29 |
申请人 |
DESOTO, INC. |
发明人 |
MUELLER, ALVIN W.;WILLIAMS, ROBERT J.;ANSEL, ROBERT E. |
分类号 |
A63B59/06;B29C70/72;(IPC1-7):A63B59/06 |
主分类号 |
A63B59/06 |
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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