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.
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
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