发明名称 Impact point development for golf clubs
摘要 A golf club with a gripping section at one end and a club head having a heel portion and a toe portion, attached to the shaft at the other end wherein said shaft centerline and a plane parallel to the ground and tangent to said heel form a lie angle when said club head is at rest and positioned to strike said golf ball; a club head whose mass distribution is concentrated at said toe and heel; a club face on said club head operable for striking a golf ball and spanning the area between said heel and said toe of said club head and having a heel to toe and sole to the top of club head bulge defined by a radius whose center is offset toward said heel and whose arc is swept from heel to toe of said club face; a lie angle configured to maintain the impact point of said golf ball on said club face when said impact point is off the center of mass.
申请公布号 US2003036440(A1) 申请公布日期 2003.02.20
申请号 US20020162959 申请日期 2002.06.05
申请人 GRIM EARL 发明人 GRIM EARL
分类号 A63B53/02;A63B53/04;(IPC1-7):A63B53/04 主分类号 A63B53/02
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