Multi-piece solid golf ball

Details Multi-piece solid golf ball Multi-piece solid golf ball

2006-10-17

2006-10-17

Kim, Eugene (Department: 3711)

Games using tangible projectile

Golf

Ball

C473S351000

Reexamination Certificate

active

07121959

ABSTRACT:
The invention provides a multi-piece solid golf ball having soft, good shot feel, excellent flight performance, high rebound characteristics and high launch angle, when hit by golfers who swing a golf club at high or low head speed using all golf clubs, namely, a driver to an iron club, a putter. The multi-piece solid golf ball has a core having an inner core and an outer core covering the inner core, and at least one layer covering the core; the inner core has a diameter of 30 to 40.4 mm and surface hardness of 60 to 85 JIS-C, and center JIS-C hardness of the inner core lower than the surface hardness by 5 to 30; the outer core has a thickness of 0.2 to 1.3 mm, and a surface JIS-C hardness of the outer core lower than the surface hardness of the inner core by 2 to 30.

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Farrally et al. “Material Selection for Non-wound cores,” Science and Golf III. Illinois: Human Kinetics, copyright 1999, p. 411-412.

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