Golf ball

Details Golf ball Golf ball

1996-07-16

1998-02-24

Marlo, George J.

Games using tangible projectile

Golf

Ball

2643281, 29899, A63B 3714

Patent

active

057206767

ABSTRACT:
In a golf ball having at least a set of large and small diameter dimples, the large and small diameter dimples are of the same cross-sectional shape in their lower portion. The small diameter dimple (2) has the same shape in cross-sectional view from a depth of 0.01 mm below the dimple (2) edge (3) to the bottom as that of the bottom portion of the large diameter dimple (1). A master model is prepared by feeding a cutter into a hemispherical surface of a master block to different depths while rotating the cutter, thereby forming a set of large and small recesses, respectively, wherein the large and small recesses have the same cross-sectional shape. The master model having plural types of dimples can be briefly fabricated and has increased freedom of design. Using the master model, a golf ball featuring uniform and densely distributed dimples can be manufactured.

REFERENCES:
patent: 5547197 (1996-08-01), Pocklington

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