Golf ball

Details Golf ball Golf ball

2007-11-06

2007-11-06

Trimiew, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

Reexamination Certificate

active

11129399

ABSTRACT:
Golf ball2has numerous dimples8formed on its surface. The dimple8has a first side wall face14, a second side wall face16that is positioned to the bottom side of this first side wall face14, and a bottom face18that is positioned to the bottom side of this second side wall face16. Curvature radius R1of the first side wall face14is equal to or greater than a virtual curvature radius Rx. Curvature radius R2of the second side wall face16is smaller than the virtual curvature radius Rx. Curvature radius R3of the bottom face18is equal to or greater than the virtual curvature radius Rx. Depth d1of the first side wall face14is 0.10 times or greater and 0.50 times or less of the depth d of the dimple8. Maximum diameter D2of the second side wall face16is 0.60 times or greater and 0.95 times or less of the diameter D1of the dimple8.

REFERENCES:
patent: 4813677 (1989-03-01), Oka et al.
patent: 5338039 (1994-08-01), Oka et al.
patent: 5735757 (1998-04-01), Moriyama
patent: 6986720 (2006-01-01), Sajima et al.
patent: 7052415 (2006-05-01), Sasaki et al.
patent: 2006/0116220 (2006-06-01), Ohama et al.
patent: 2006/0116222 (2006-06-01), Sajima et al.

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