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A groove configuration for a putter type golf club head formed of a series of grooves. Each groove has a first surface disposed at an angle no greater than 90 degrees to the ball striking face and a second surface disposed at a lesser angle to the ball striking face. The outermost edges of the groov

A groove configuration for a putter type golf club head formed of a series of grooves. Each groove has a first surface disposed at an angle no greater than 90 degrees to the ball striking face and a second surface disposed at a lesser angle to the ball striking face. The outermost edges of the groove surfaces intersect in a saw-tooth configuration to provide a gripping area which imparts spin to a golf ball when it is struck by the putter type golf club.

대표청구항 ▼

A putter type golf club head including a club head body with a heel, toe, upper surface, a bottom, ball striking face, said face being further defined by a flat plane coincident therewith, and a leading edge at the intersection of said ball striking face and said bottom wherein the improvement compr

A putter type golf club head including a club head body with a heel, toe, upper surface, a bottom, ball striking face, said face being further defined by a flat plane coincident therewith, and a leading edge at the intersection of said ball striking face and said bottom wherein the improvement comprising: a series of grooves formed in said ball striking face; each one of said grooves having a first surface at a first angle no greater than 90 degrees to said flat plane of said ball striking face and a second surface extending from an outermost portion of said first surface coincident with said flat plane; said second surface extending downwardly and inwardly from said ball striking face into said club head body, at an angle less than said first angle.