Golf ball

Details Golf ball Golf ball

1997-03-14

1998-06-09

Marlo, George J.

Games using tangible projectile

Golf

Ball

473378, 473357, A63B 3706, A63B 3712

Patent

active

057625689

ABSTRACT:
The present invention provides a multi-layer structure golf ball using a thread wound core, which has good shot feel and attains long flight distance. The golf ball comprises a thread wound core composed of a solid center and thread rubber layer on the center, and a cover covering the thread wound core, the cover having two layered structure comprising an inner layer cover and an outer layer cover, wherein the inner layer cover has a specific gravity of 1-1.8 and a thickness of 0.5-3 mm, the outer layer cover has a specific gravity of 0.9-1.1 and a thickness of 1-3 mm, the specific gravity of the inner layer cover is larger than that of the outer layer cover, the solid center has a diameter of from 28 to 35 mm, the thread rubber has a thickness of from 1 to 5.5 mm, and a ratio of (diameter (mm) of the solid center)/(amount of deformation (mm) formed by applying a load of from an initial load of 10 Kg to a final load of 130 Kg to the thread wound core) is from 5 to 15.

REFERENCES:
patent: 5674137 (1997-10-01), Maruko et al.

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