发明名称 Spin milled grooves for a golf club
摘要 The present invention is directed to a method of forming a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra.
申请公布号 US7653980(B2) 申请公布日期 2010.02.02
申请号 US20070889835 申请日期 2007.08.16
申请人 ACUSHNET COMPANY 发明人 VOKEY ROBERT W.;GILBERT PETER J.;BURNETT M. SCOTT;KAYS CHRISTOPHER R.
分类号 A63B53/04;B23P13/00 主分类号 A63B53/04
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