发明名称 Inverted mass relieved putter
摘要 A putter head fashioned from a block metal having a conventional face, but having a mass relieved portion behind the face, with greatest mass relief at the sole of the club and a lesser amount of mass relief extending upwardly to the top surface of the club which has conventional dimensions and shape. Since the greatest amount of mass relief is at the bottom of the club, the mass relief is said to be inverted. A pair of inclined ribs behind the central portion of the face add stiffness to the club. The club has a raised center of gravity intended to be in alignment with the center of a golf ball. A plug of heavy metal may be centered on the center of gravity to add stiffness at the zone. Although the club would typically be made out of aluminum or steel, a club, without the plug, could be made of an ultra heavy metal, such as depleted uranium, and be no heavier than a regular club due to the inverted mass relief.
申请公布号 US6383089(B1) 申请公布日期 2002.05.07
申请号 US20000557186 申请日期 2000.04.21
申请人 BONNEAU MICHAEL D. 发明人 BONNEAU MICHAEL D.
分类号 A63B53/04;(IPC1-7):A63B53/04 主分类号 A63B53/04
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