Golf ball

Details Golf ball Golf ball

Filed on

2007-03-05

Date issued

2008-11-25

Examiner

Trimiew, Raeann (Department: 3711)

Patent Class

Games using tangible projectile

SubClass

Golf

SubSubClass

Ball

Type

Reexamination Certificate

Status

active

Patent number

07455602

Description

ABSTRACT:
The invention provides a golf ball composed of a core, a cover, and an intermediate layer between the core and the cover, which ball has a surface with a plurality of non-circular dimples thereon. The cover is harder than the intermediate layer. The ball surface has land areas with intervals therebetween of from 0.05 to 1.0 mm, the lands having outer surfaces that define an outermost peripheral face of the ball. The non-circular dimples have non-circular inside corners that are curved. The ball satisfies conditions (I) to (IV) below:(I) (core initial velocity)−(ball initial velocity)≧0;(II) 0.87≦(deflection of intermediate layer-covered sphere)/(core deflection)≦0.97;(III) combined thickness of intermediate layer and cover≦3.0 mm; and(IV) (ball deflection)/(deflection of intermediate layer-covered sphere)≦0.98.The golf ball of the invention has an increased distance and a stable flight performance.

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