Multi-piece solid golf ball

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

2008-05-27

2008-05-27

Trimiew, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

Reexamination Certificate

active

11443075

ABSTRACT:
This invention provides a multi-piece golf ball composed of a core, an intermediate layer enclosing the core, and a cover layer which encloses the intermediate layer and has on an outside surface thereof a plurality of dimples. The cover layer is harder than the intermediate layer. Letting A be the thickness of the intermediate layer, B be the thickness of the cover layer and C be the diameter of the core, 65≧C/A≧27 and 65≧C/B≧27. In addition, the ball has an initial velocity, as measured by a method set forth in the Rules of Golf using an initial velocity measuring apparatus of the same type as the USGA drum rotation-type initial velocity instrument, of at least 77.0 m/s.

REFERENCES:
patent: 6520872 (2003-02-01), Endo et al.
patent: 7066836 (2006-06-01), Hayashi
patent: 7086967 (2006-08-01), Watanabe et al.
patent: 2003/0190976 (2003-10-01), Binette et al.
patent: 2004-16583 (2004-01-01), None

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