发明名称 Putter having extra high moment of inertia
摘要 10A golf putter having a moment of inertia in the 12,000-28,000 gm/cm2range. The main body of a putter blade is disposed in trailing relation to a ballstriking surface and includes a frame part formed of a preselected light-in-weight material. The frame part has enlarged openings at its toe and heel ends for receiving toe and heel weight members. The toe and heel weight members are formed of a preselected material heavier than the material that forms the frame part. One embodiment has a length of about seven and one-half inches, a weight of about five hundred fifty grams, and a moment of inertia of about 28,000 gm/cm2.
申请公布号 US6488595(B1) 申请公布日期 2002.12.03
申请号 US20010681848 申请日期 2001.06.15
申请人 GRACE ROBERT M. 发明人 GRACE ROBERT M.
分类号 A63B53/04;(IPC1-7):A63B53/04;A63B53/06;A63B53/08 主分类号 A63B53/04
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