Golf balls and their production process

Details Golf balls and their production process Golf balls and their production process

1997-05-09

1998-10-06

Marlo, George J.

Games using tangible projectile

Golf

Ball

473377, 473383, 29899, A63B 3712, A63B 3714

Patent

active

058169431

ABSTRACT:
A golf ball includes a cover and a coating formed on the cover, and dimples are formed in a layer composed of the cover and the coating. The coating is formed of a material having contraction and expansion properties and a higher heat resistance than the material for the cover and has a thickness of at least 15 .mu.m. In a process for producing the golf ball, after the formation of the coating, dimples are formed through the coating by conducting compression molding at a molding temperature near the melting point of the cover. In the golf ball, dimples can be precisely shaped and sharp edged through precise reproduction of design values of dimples. Moreover, the golf ball does not require deburring after dimple formation, thereby preventing a reduced preciseness of dimple shape and resultant variations in quality.

REFERENCES:
patent: 5225133 (1993-07-01), Ihara et al.
patent: 5695414 (1997-12-01), Yokota
patent: 5704853 (1998-01-01), Maruko et al.

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