Two-piece solid golf ball

Details Two-piece solid golf ball Two-piece solid golf ball

1997-01-10

1999-01-26

Marlo, George J.

Games using tangible projectile

Golf

Ball

473384, 273DIG20, A63B 3706, A63B 3712, A63B 3714

Patent

active

058632646

ABSTRACT:
In a 2-piece solid golf ball comprising a solid core and a cover, the golf ball has a weight of 41-44.5 grams, the cover is formed of a thermoplastic resin having a Shore D hardness of 50-68 degrees, and the solid core has a surface hardness of 65-85 degrees and a center hardness of 60-80 degrees as measured by a JIS-C scale hardness meter, with the surface hardness.gtoreq. the center hardness+5. Despite a light weight, the golf ball is improved in flying distance and feel when hit at a relatively low head speed of 35-40 m/sec. The golf ball is thus appropriate for players of the beginner to middle rank.

REFERENCES:
patent: 4570937 (1986-02-01), Yamada
patent: 4840381 (1989-06-01), Ihara et al.
patent: 5439227 (1995-08-01), Egashira et al.
patent: 5497996 (1996-03-01), Cadorniga

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