Golf ball

Details Golf ball Golf ball

1997-07-14

1998-10-13

Marlo, George J.

Games using tangible projectile

Golf

Ball

473372, 473384, A63B 3712, A63B 3714, A63B 3706

Patent

active

058204920

ABSTRACT:
A golf ball comprising a solid core, and a cover enclosing the core and having a multiplicity of dimples formed therein has a diameter of 42.70.+-.0.05 mm and a specific gravity of 1.05.+-.0.05. The cover is composed mainly of an ionomer resin and has a Shore D hardness of at least 60, and the dimples satisfy the condition of 0.80.ltoreq.V.sub.R .ltoreq.1.16 wherein V.sub.R is a percent overall dimple volume given by the formula: ##EQU1## wherein Vs is a sum of the volumes of the dimple spaces each below a circular plane circumscribed by the dimple edge and R is a radius of the ball. The ball has a weight of 40.5 grams to less than 44.5 grams, and a cover thickness of 1.4 to 2.4 mm. The core undergoes a distortion of 2.4 to 4.3 mm under a load of 100 kg. Those golf players with a slow head speed can enjoy the advantages of the ball including an increased flying distance and a pleasant hitting feel.

REFERENCES:
patent: 3326869 (1967-06-01), Perrone
patent: 5328959 (1994-07-01), Sullivan
patent: 5368304 (1994-11-01), Sullivan et al.
patent: 5452898 (1995-09-01), Yamagishi et al.
patent: 5490673 (1996-02-01), Hiraoka
patent: 5497996 (1996-03-01), Cadorniga
patent: 5601503 (1997-02-01), Yamagishi et al.

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