Patent ID: 6368238
Filing Date: 2002-04-09
Classification: A63B

Abstract:
A golf ball having a plurality of dimples formed in its surface, wherein each dimple prior to paint coating consists of a major concave surface portion defining a recess in the ball surface and a peripheral convex surface portion circumscribing the major concave surface portion, said dimple has a bottom, a peripheral edge and a depth therebetween, wherein the major concave surface portion of the dimple has a radius of curvature rM which is from 3 mm to 20 mm and whose center is located outside of the ball and the peripheral convex surface portion has a radius of curvature rE which is from 0.3 mm to 3.0 mm and whose center is located inside the ball, said peripheral convex surface portion connects to said major concave surface portion at a point of inflection which is located at a distance of F of 10 to 30% of the dimple depth d from the dimple edge.