Games using tangible projectile – Golf – Ball
Patent
1997-03-20
1998-10-13
Marlo, George J.
Games using tangible projectile
Golf
Ball
473373, A63B 3706, A63B 3712
Patent
active
058204873
ABSTRACT:
A three-piece solid golf ball of the three-layer structure comprising a solid core, an intermediate layer, and a cover is provided. When hardness is expressed by JIS-C scale hardness, the core surface hardness is higher than the core center hardness by 8-20 degrees, the intermediate layer hardness is higher than the core surface hardness, and the cover hardness is higher than the intermediate layer hardness. The ball has a weight of 41-44.5 grams. The golf ball exhibits consistent performance independent of head speeds.
REFERENCES:
patent: 4431193 (1984-02-01), Nesbitt
patent: 5048838 (1991-09-01), Chikaraishi
patent: 5273286 (1993-12-01), Sun
patent: 5439227 (1995-08-01), Egashira et al.
patent: 5601503 (1997-02-01), Yamagishi et al.
patent: 5688191 (1997-11-01), Cavallaro et al.
Nakamura Atsushi
Yamagishi Hisashi
Bridgestone Sports Co. Ltd.
Marlo George J.
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