Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 25, 2014
Patent Application Number
12957535
Date Filed
December 1, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances using a profiled cutter. More specifically, the grooves has a radius of curvature R1 and a draft angle θ forming a relationship that satisfies the equation R1≧(1*10−7θ3)−(3*10−5θ2)+0.003θ−0.0891 to achieve a maximum spin performance.
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